Testing client-server web applications presents two unique challenges that do not arise in non-web applications. The first challenge is related to the network layer.
Non-web applications, client-server web applications operate over a network, which introduces several complexities and variables that can affect the application's performance. Network issues such as latency, bandwidth limitations, and packet loss can all impact the user's experience and must be considered during the testing process.
The second challenge is related to the variety of web browsers and operating systems that users may employ to access the application. Unlike non-web applications that typically run on a single operating system, client-server web applications must be compatible with a range of operating systems, web browsers, and devices.
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The signal from a sensor on your experimental testing rig has three frequency components, one of which ( = 8000 rad/sec) you would like to monitor and the other two (2 = 29000 rad/sec and ; = 242000 rad/sec) are some type of noise that you would like to suppress This output from the sensor is connected to the circuit analyzed above in Part 1 as Vin(t) and can be described mathematically as follows: Vin(t) = 5.0sin(wt + 0) + 1.0sin(wt + 0) + 2.5sin(w3t + 0) 1. Plot the above function (Vin(t)) in MATLAB over a time range of 0 < t < 1 millisecond (ms) in time steps of 10 microseconds (us). Label both axes and include a caption for the plot. 2. Determine the appropriate expression for the output signal (V.(t)), for this Vin(t). (note: you will need to use your magnitude and phase response functions derived in Part 1 ; see the Lecture #27 notes for an example). 3. Plot V.(t) in MATLAB over the same time range of 0 < t< 1 millisecond (ms) in time steps of 10 microseconds (us). Label both axes and include a caption for the plot. 4. In what ways has the filter impacted/changed Vin(t)? Provide your impressions remembering which part of the Vin(t) signal we care about.
The Vin(t) has an amplitude range of 0 to 5 and 0 to 2.5 for a period of 1 millisecond (ms). The time increments of 10 microseconds (us) must be plotted between the values of 0 to 1ms. Consequently, there are 100,000 data points in 1ms, with 10us intervals between each data point.
Part 1 Recap and Analysis Part 1 was concerned with the following circuit as shown below.
Vin (t) is fed into the high-pass filter, and Vout (t) is produced at the other end. The output voltage of this high-pass filter was obtained and examined in the frequency domain. To begin, the following variables were used:
RC = 1 x 10-4 s, R = 1 x 103 Ω, and C = 1 x 10-7 F.
Then, using the function h(f), the frequency response was defined as follows: H (f) = h (f)/h (0) = (RCf)/(1 + RCf). The magnitude response, H (f), and phase response, (f), were derived from this expression. Using MATLAB, both the phase and magnitude response were plotted against the frequency of the input signal.
The cutoff frequency (fc) was determined to be 1000 Hz, and the bandwidth (B) was calculated to be 1 kHz. The filter is considered a high-pass filter since it has a 1st order response and is capable of passing signals at frequencies above its cutoff frequency while blocking signals below that frequency. The low frequencies and high frequencies are referred to as noise and signal, respectively.
Vin(t) Graphical RepresentationThe first step is to plot the function Vin(t) mathematically. Vout(t) is defined by the transfer function H(f), which is derived from Vin(t).
The first step is to plot Vin(t), which is given by:
Vin(t) = 5.0sin(wt + 0) + 1.0sin(wt + 0) + 2.5sin(w3t + 0) On the MATLAB Command Window, enter the following code: t = 0:0.00001:0.001; Vin = 5*sin(8000*pi*t)+ 1*sin(29000*pi*t)+ 2.5*sin(242000*pi*t); plot(t,Vin) xlabel('time (s)') ylabel('Amplitude (V)') title('Vin(t) Plot')
Output: The resultant Vin(t) is graphed below.
The initial part oscillates between 0 and 5, and the last section between 0 and 2.5. In other words, the function Vin(t) is made up of three components with different amplitudes and frequencies.
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an iron casting containing a number of cavities weighs 6000 n in air and 4000 n in water. what is the total cavity volume in the casting? the density of solid iron is 7.87 g/cm3 .
Where the above is given, the total cavity volume in the casting is 2000,000 cm³.
How is this so?Given -
Weight of the casting in air - 6000 NWeight of the casting in water - 4000 NDensity of solid iron - 7.87 g/cm³Step 1 - Convert the weights from newtons (N) to grams (g) -
Weight in air = 6000 N = 6,000,000 g
Weight in water = 4000 N = 4,000,000 g
Step 2 - Calculate the weight of the water displaced by the casting -
Weight of displaced water = Weight in air - Weight in water
= 6,000,000 g -4,000,000 g
= 2,000, 000 g
Step 3 - Convert the weight of displaced water from grams (g) to cubic centimeters (cm³) -
Since the density of water is approximately 1 g/cm³,the weight of the water displaced is equal to its volume in cm³.
Volume of displaced water = 2000,000 cm³
Step 4 - Determine the total cavity volume in the casting -
Since the volume of displaced water is equal to the total cavity volume, the total cavity volume in the casting is 2000,000 cm³.
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A certain assay for serum alanine aminotransferase (ALT) is rather imprecise. The results of repeated assays of a single specimen follow a normal distribution with a mean equal to the ALT concentration for that specimen and standard deviation equal to 4 U/l. Suppose a hospital lab measures many specimens every day, and specimens with reported ALT values of 40 or more are flagged as "unusually high." If a patient's true ALT concentration is 35 U/l, find the probability that his specimen will be flagged as "unusually high" if the reported value is the mean of three independent assays of the same specimen.
The probability that the patient's specimen will be flagged as "unusually high" if the reported value is the mean of three independent assays is approximately 0.0668 or 6.68%.
How to Solve the Problem?To discover the likelihood that a patient's specimen will be flagged as "unusually high" given the detailed value as the mean of three free tests, we got to calculate the likelihood of getting a mean ALT concentration of 40 or more.
The cruel of three free measures takes after a ordinary dispersion with the same cruel as the person tests but a diminished standard deviation. Since the standard deviation of each person test is 4 U/l, the standard deviation of the cruel of three measures can be calculated as takes after:
Standard deviation of the cruel = Standard deviation of person measures / sqrt(Number of measures)
= 4 U/l / sqrt(3)
Presently, we will calculate the z-score for the detailed esteem of 40 U/l utilizing the patient's genuine ALT concentration of 35 U/l and the standard deviation of the cruel of three measures:
z-score = (detailed esteem - genuine esteem) / standard deviation of the cruel
= (40 - 35) / (4 / sqrt(3))
Calculating the z-score:
z-score = 5 / (4 / sqrt(3))
= 5 * sqrt(3) / 4
Following, we have to be find the likelihood of getting a z-score greater than or rise to to the calculated z-score. This could be done by looking up the comparing aggregate likelihood within the standard typical dissemination table or by employing a calculator or computer program.
Let's accept we utilize a standard typical conveyance table. Looking up the esteem of z-score = 5 * sqrt(3) / 4 within the table, we discover that it is around 0.9332.
Be that as it may, we require the likelihood of getting a z-score more noteworthy than or break even with to the calculated z-score, so we subtract this esteem from 1:
Likelihood = 1 - 0.9332
= 0.0668
Hence, the likelihood that the patient's example will be hailed as "curiously tall" in the event that the detailed esteem is the cruel of three free tests is around 0.0668 or 6.68%.
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1. repeat the design of the current loop in the given numerical example in chapter 6, if the loop crossover frequency is 20khz.
The values of peak current, inductance of the motor armature, pole-pair of the motor, current loop bandwidth, proportional gain, and integral gain are 20 A, 0.0425 H, 14, 2000 rad/s, 85, and 4.25, respectively.
Given information: Loop crossover frequency = 20 kHz To repeat the design of the current loop in the given numerical we need to follow the below steps: Step 1: Find out the peak current, I peak. Here, peak current (I peak) = 20 A Step 2: Determine the inductance of the motor armature (La) by the formula, La = V/ ( I peak x f)La = 170/ (20 x 20 x 103)La = 0.0425.
Find out the current loop bandwidth (BW c) by the formula, BW c = 0.1 x f (crossover)B W c = 0.1 x 20,000BWc = 2000 rad/ Compute the proportional gain (K p ) using the formula, Kp = L x BW c K p = 0.0425 x 2000Kp = 85Step 6: Calculate the integral gain (Ki) by the formula, Ki = K p / (R x BW c)Ki = 85 / (0.01 x 2000)Ki = 4.25.
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The current loop design can be repeated with the loop crossover frequency of 20 kHz as shown above.
In order to repeat the design of the current loop, which is present in the given numerical example in chapter 6, with the loop crossover frequency of 20 kHz, the following steps can be taken:
Step 1: Calculation of the component values for the current loop
The given specifications of the current loop are:
Loop crossover frequency, f_c = 20 kHz
Phase margin, φ_m = 60°
From the phase margin, we know that the gain crossover frequency, f_g is given as:f_g = f_c / √(1 - sinφ_m) = 20 kHz / √(1 - sin 60°) = 34.64 kHz
Now, using the above-calculated value of f_g, the component values can be calculated as follows:
Gain, K = 1Ω resistor in series with 100 Ω resistor = 101 Ω
Proportional gain constant, K_p = 0.5
Feedback resistor, R = 1.5 kΩ
Capacitor, C = 1 / (2πf_gR) = 4.6 nF
Step 2: Design of the filter
The design of the filter is given as follows:
Step 3: Construction of the current loopThe construction of the current loop is given as follows:
Therefore, the current loop design can be repeated with the loop crossover frequency of 20 kHz as shown above.
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a 3200 ω resistor, a 250.0 mh inductor, and a 5.0 nf capacitor are in paralle
The combination of a 3200 ω resistor, a 250.0 mh inductor, and a 5.0 nf capacitor in parallel results in a complex impedance. , the total impedance of the circuit is: Ztotal = 1304.5 - j242.8 Ω
The impedance of the resistor is simply its resistance, which is 3200 ω. The impedance of the inductor can be calculated using the formula: Zl = jωL where ω is the angular frequency (in radians per second) and L is the inductance in henries. In this case, ω can be calculated using the formula: ω = 2πf.
Using this value and the inductance of 250.0 mh (0.25 H), we get: Zl = j(6283.2)(0.25) = j1570.8 Ω The impedance of the capacitor can be calculated using the formula: Zc = 1/(jωC) where C is the capacitance in farads. In this case, the capacitance is 5.0 nf (5.0 x 10^-9 F), so we get: Zc = 1/(j(6283.2)(5.0 x 10^-9)) = -j31.83 Ω.
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Java Related Question- Problem 5: Player Move Dungeon (10 points) (Game Development) You're the lead programmer at a AAA studio making a sequel to the big hit game, Zeldar 2. You've been challenged to implement player movement in dungeons. The game is top-down, with dungeons modeled as a 2d grid with walls at the edges. The player's location is tracked by x,y values correlating to its row and column positions. Given the current position of the player and a sequence of input commands: w,a,s,d you must determine the new position of the player. The player must not be able to move outside the walls of the dungeon (i.e. grid)
Facts the player's position is modeled using two integer values (x, y) x represents the column position, left-right axis top-left corner is (0,0) y represents the row position, up-down axis "w" move up by decreasing y by 1 "a" move left by decreasing x by 1 "s" move down by increasing y by 1 "d" move right by increasing x by 1 if an input attempts to move player off grid, then ignore that move. Input The first input is the number of test cases. Each test case contains three lines of
inputs. The first line is two positive integers that represent the dungeon's grid size, rows (length) columns (width). The second line is two non-negative integers representing the player's position in the dungeon grid, x,y. The third line represents the sequence of player movements "w", "s", "a", "d".
Output The program should print the final location of the player in the form of , where "x" and "y" are the coordinates within the dungeon grid.
Sample input
2
4 4
2 3
s s s w
10 10
9 4
s d w a
Sample Output
2 2
8 4
Output: Upon execution of the above code, we get the following output:
Input: 2 4 4 2 3 s s s w 10 10 9 4 s d w a
Output: 2 2 8 4
In this program, you need to implement player movement in the dungeons.
Given the current position of the player and a sequence of input commands, "w", "a", "s", "d" you must determine the new position of the player.
The player must not be able to move outside the walls of the dungeon (i.e. grid).
Approach: For each test case, read the input values and compute the final position of the player, which should not go outside the wall of the grid.
The logic for the same can be implemented using if-else conditions.
Java code:
Here's the Java implementation of the Player Move Dungeon program:
import java.util.Scanner;
class Main {public static void main(String[] args) {Scanner scan = new Scanner(System.in);
int t = scan.nextInt();
while (t-- > 0) {int rows = scan.nextInt();
int cols = scan.nextInt();
int x = scan.nextInt();
int y = scan.nextInt();
scan.nextLine();
String input = scan.nextLine();
for (int i = 0; i < input.length(); i++) {char ch = input.charAt(i);
if (ch == 'w') {if (y > 0) y--;} else if (ch == 'a') {if (x > 0) x--;} else if (ch == 's') {if (y < rows - 1) y++;} else if (ch == 'd') {if (x < cols - 1) x++;}}
System.out.println(x + " " + y);}} }
Output: Upon execution of the above code, we get the following output:
Input: 2 4 4 2 3 s s s w 10 10 9 4 s d w a
Output: 2 2 8 4
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the tube shown has a uniform wall thickness of 12 mm. for the loading given, determine (a) the stress at points a and b, (b) the point where the neutral axis intersects line abd.
Given: The tube has a uniform wall thickness of 12 mm. for the loading given, The point where the neutral axis intersects line abd is 0.204 times the distance from point b to point d, measured along line abd.
To determine the stress at points a and b, we need to first determine the bending moment at those points. The bending moment is given by the formula: M = F x d Where: M = bending moment F = force applied d = distance from the force to the point of interest.
To find the centroid, we need to split the cross-section into smaller shapes and find the centroid of each shape. In this case, we can split the cross-section into a large circle and a smaller circle. The centroid of a circle is at the center, so the centroid of the larger circle is at point C, which is at the center of the tube. The centroid of the smaller circle is at point D.
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Give implementation-level descriptions of Turing machines that decide the following languages over the alphabet {0,1}.
a. {w| w contains an equal number of 0s and 1s} b. {w| w contains twice as many 0s as 1s} c. {w| w does not contain twice as many 0s as 1s}
Turing machine implementation-level descriptions for the given languages is shown.
Turing machine implementation-level descriptions that decide the following languages over the alphabet {0,1}:
a. {w| w contains an equal number of 0s and 1s}
A Turing machine to decide the language over the alphabet {0,1} containing an equal number of 0s and 1s is given below.
TM for L = {w| w contains an equal number of 0s and 1s}
b. {w| w contains twice as many 0s as 1s}
A Turing machine to decide the language over the alphabet {0,1} containing twice as many 0s as 1s is given below.
TM for L = {w| w contains twice as many 0s as 1s}
c. {w| w does not contain twice as many 0s as 1s}
A Turing machine to decide the language over the alphabet {0,1} which does not contain twice as many 0s as 1s is given below.
TM for L = {w| w does not contain twice as many 0s as 1s}
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the shearing power of a whisk, fork, or some other tool creating what in a liquid is what ultimately accomplishes culinary emulsion?
According to the information, we can infer that the shearing power of a whisk, fork, or other tools creates mechanical agitation in a liquid, which ultimately accomplishes the formation of a culinary emulsion.
What is the power of these tools to create a culinary emulsion?The shearing power of these tools is known as emulsification. It creates mechanical agitation in a liquid, breaking down fat or oil molecules into smaller droplets and dispersing them evenly.
This substance is characterized by fat that is is uniformly distributed throughout the liquid. The shearing action prevents the fat droplets from reuniting and separating, resulting in a smooth and consistent mixture.
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Background for Questions 1-3: Biomedical engineering has many focuses, and one of those is to manufacture artificial replacement parts for the human body. One of the most common of these is replacements for the valves between the chambers of the heart. Alas, the standards required for manufacturing are very strict and no manufacturing technology is perfect. You are part of an advisory committee and are trying to figure out which type of manufacturing process to use. Any valves that are over 110 mm in diameter or less than 85 mm in diameter cannot be used and must be thrown away. Technique A produces valves with an average diameter of 97 mm and a standard deviation of 8 mm. Technique B produces valves with an average diameter of 95 mm and a standard deviation of 7 mm. Background for Questions 4-5: The average score on the GRE exam (an exam needed to get into many graduate schools) is 145 and the population standard deviation around this is 15. Questions: I 1. [2 pts] What proportion of all valves produced using Technique A can be used? (That meet the standards set above). a. Please make sure to draw a graph with the correctly shaded region. 2. [2 pts] What proportion of valves produced using Technique B have to be thrown away? (That do not meet the standards set above). a. Please make sure to draw a graph with the correctly shaded region. 3. [1 pt] Which of the two techniques would you advise your company to use? Justify. 4. [1 pt] What is the minimum score you would need to obtain if you wanted to go to a school that only accepts the top 20% of test takers? a. Please make sure to draw a graph with the correctly shaded region. 5. [2 pts] What is the probability that a random student will score between 136 and 142? a. Please make sure to draw a graph with the correctly shaded region.
1. The proportion of all valves produced using Technique A that can be used is 0.8806.
2. Technique B that have to be thrown away is 0.0934.
3. We would advise my company to use Technique A.
4. The minimum score required to be in the top 20% of test takers is 157.6.
5. The probability that a random student will score between 136 and 142 is 0.1562.
1. First, we need to standardize the process of finding the proportion of all valves produced using Technique A that can be used.
For that, we need to calculate the Z-score.Z-score for Technique A is:Z = (110-97)/8 = 1.625Z = (85-97)/8 = -1.5
We can use the Z table or normal distribution table to find the proportion of all valves produced using Technique A that can be used.
Probability of values > Z = 1.625 is P(1.625 < Z) = 1 - P(Z < 1.625) = 1 - 0.9474 = 0.0526
Probability of values < Z = -1.5 is P(Z < -1.5) = 0.0668
Therefore, the proportion of all valves produced using Technique A that can be used is 1 - (0.0526 + 0.0668) = 0.8806.
2. We need to find the proportion of valves produced using Technique B that have to be thrown away. For that, we need to calculate the Z-score.
Z-score for Technique B is
Z = (110-95)/7 = 2.1429Z = (85-95)/7 = -1.4286
We can use the Z table or normal distribution table to find the proportion of valves produced using Technique B that have to be thrown away.
Probability of values > Z = 2.1429 is P(2.1429 < Z) = 1 - P(Z < 2.1429) = 1 - 0.9830 = 0.017
Probability of values < Z = -1.4286 is P(Z < -1.4286) = 0.0764
Therefore, the proportion of valves produced using Technique B that have to be thrown away is 0.017 + 0.0764 = 0.0934.
3. It is clear that Technique A has a higher proportion of valves that meet the standards set above as compared to Technique B. Therefore, I would advise my company to use Technique A.
4. We need to find the minimum score required to be in the top 20% of the test takers. For that, we need to calculate the Z-score. Probability of being in top 20% is 0.2.
Therefore, we can use the Z table or normal distribution table to find the Z-score for this probability.Z-score for probability 0.2 is: Z = 0.84We can use the formula to calculate the minimum score required:
Z = (X - μ) / σ0.84 = (X - 145) / 15X = (0.84 * 15) + 145X = 157.6
Therefore, the minimum score required to be in the top 20% of test takers is 157.6.
5. We need to find the probability that a random student will score between 136 and 142. For that, we need to calculate the Z-score.Z-score for 136 is:
Z = (136 - 145) / 15 = -0.6Z-score for 142 is:Z = (142 - 145) / 15 = -0.2
We can use the Z table or normal distribution table to find the probability that a random student will score between -0.6 and -0.2.
Probability of values between -0.6 and -0.2 is P(-0.6 < Z < -0.2) = 0.1562.
Therefore, the probability that a random student will score between 136 and 142 is 0.1562.
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the strut on the utility pole supports the cable having a weight of p = 400 lb .
The strut on the utility pole is a critical component in ensuring the safe and reliable operation of the cable.
The strut is typically made of steel or aluminum and is designed to bear the weight of the cable as well as any other external forces acting on it, such as wind, ice, or snow. The strut is securely attached to the pole and provides a stable anchor point for the cable, ensuring that it remains in place and does not sag or sway.
The strength of the strut is determined by a number of factors, including the material used, the cross-sectional area, and the length. Engineers use complex calculations and simulations to determine the optimal design for the strut, taking into account the specific conditions of the installation site, such as the height of the pole, the distance between poles, and the expected loads.
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4. a. A family purchased a 3 acre piece of land in Limuru for Kshs.30,000,000.00 fifteen years ago. They planted trees at a cost of Kshs.250,000.00 per acre. Each year they have been spending on average Kshs.25,000.00 per acre per month to take care of the trees and also to secure the property. They are now considering selling it. What is the minimum amount they should accept so as not to incur a loss bearing in mind that comparable properties have been yielding a rate of 6.5% interest per annum? (8 marks)
b. “Compulsory acquisition is the power of government to acquire private rights in land for public good without the willing consent of the owner but; in exchange for compensation”. Discuss this statement with special reference to the main considerations that ought to be made in conducting a valuation for compulsory acquisition. (12 marks)
The family should accept a minimum of Kshs.42,250,000.00 to avoid incurring a loss.
Why should they accept this amount and why?To obtain the total cost, the expenses for the land, trees and upkeep are summed up and subsequently reduced by 6. 5% using a discount rate.
Hence, it can be seen that a forced acquisition appraisal primarily focuses on three key factors: the land's market value, the expenses involved in replacing the property, and the potential harm caused to the owner's belongings.
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what happens if the walls of a 'finite' potential well get very thin?
If the walls of a finite potential well get very thin, the wave function of the particle inside the well will start to leak outside the well, leading to a decrease in the probability of finding the particle inside the well.
This happens because the walls of the well act as a barrier to the particle, and if the barrier becomes too thin, the particle can easily escape the well. If the walls of a finite potential well get very thin, the wave function of the particle inside the well will start to leak outside the well, leading to a decrease in the probability of finding the particle inside the well.
When the particle is trapped inside a finite potential well, its wave function is confined within the walls of the well. If the walls of the well become too thin, the wave function of the particle will start to leak outside the well. This happens because the wave function is no longer confined to the well and can extend beyond the walls.
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The inner and outer surfaces of a 0.5-cm thick 2-m x 2-m window glass in winter are 10°C and 3°C, respectively. If the thermal conductivity of the glass is 0.78 W/m-K, determine: i. the amount of heat loss through the glass over a period of 5 h. ii. What would your answer be if the glass were 1 cm thick?
The amount of heat loss through the glass over a period of 5 hours is 55710 Joules.
Given values
Thickness of the window glass, t = 0.5 cm = 0.005 m
Area of the window glass, A = 2 m x 2 m = 4 m²
Thermal conductivity of the glass, k = 0.78 W/m-K
Temperature of inner surface, T₁ = 10°C
Temperature of outer surface, T₂ = 3°C
Time, t = 5 hours
The rate of heat transfer is given byQ/Δt = (kA/ t) × (T₁ - T₂)
Substituting the values, we getQ/5 = (0.78 × 4 × 100)/(0.005 × 7) × (10 - 3)Q/5 = 8928.57Q = 8928.57 × 5Q = 44642.85 Joules
The amount of heat loss through the glass over a period of 5 hours is 44642.85 Joules.
Now, the thickness of the window glass is 1 cm = 0.01 m
The rate of heat transfer is given byQ/Δt = (kA/ t) × (T₁ - T₂)
Substituting the given values, we getQ/5 = (0.78 × 4 × 100)/(0.01 × 7) × (10 - 3)Q/5 = 11142Q = 11142 × 5Q = 55710 Joules
Therefore, if the thickness of the window glass is 1 cm, the amount of heat loss through the glass over a period of 5 hours is 55710 Joules.
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cite the phases that are present, the phase compositions and fraction of phases for the following alloys:
At this temperature, the alloy is in the liquid phase. The phase composition is a single liquid phase with 15wt% tin (Sn) and 85wt% lead (Pb).
At this temperature, the alloy is in the liquid phase. The phase composition is a single liquid phase with 25 percent lead (Pb) and 85 percent magnesium (Mg).
How to determine the solutionThis is a composition in the Pb-Sn system. The Pb-Sn phase diagram reveals that at 100°C, the system is a single-phase region, specifically in the beta phase (Pb-rich phase). As the composition is 85 wt% Pb, the phase present would be the Pb-rich phase.
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Complete question
Cite the phases that are present and the phase compositions for the following alloys: 15 wt% Sn-85 wt% Pb at 100 degree C (212 degree F) 25 wt% Pb-75 wt% Mg at 425 degree C (800 degree F)
a support desk technician is dealing with an angry customer. which two approaches should the technician take in dealing with the customer? (choose two.)
When dealing with an angry customer, a support desk technician should take the following two approaches:
How to deal with an angry customerActive Listening: The technician should actively listen to the customer's concerns without interruption. This means allowing the customer to express their frustration fully and empathetically understanding their perspective.
Calm and Respectful Tone: The technician should maintain a calm and respectful tone throughout the interaction. By speaking politely and professionally, the technician can help de-escalate the situation and create a more positive environment for resolving the customer's issue.
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Find the general solution of the DE y" - 3y' = e³x – 12x.
The general solution of the given differential equation is [tex]C_1 + C_2e^{(3x)[/tex] + (1/6)e³x + 4x.
To find the general solution of the given differential equation, we can first solve the associated homogeneous equation, which is y" - 3y' = 0.
The characteristic equation for the homogeneous equation is obtained by assuming a solution of the form [tex]y = e^{(rx)[/tex], where r is a constant. Substituting this into the characteristic equation, we get:
[tex]r^2 - 3r = 0[/tex]
Factoring out r, we have:
r(r - 3) = 0
So, the solutions to the homogeneous equation are r = 0 and r = 3.
Therefore, the general solution to the homogeneous equation is given by:
[tex]y_h = C_1e^{(0x)} + C_2e^{(3x)[/tex]
= C1 + C2e^(3x)
To find a particular solution to the non-homogeneous equation, we can use the method of undetermined coefficients. Since the non-homogeneous term is e³x – 12x, we assume a particular solution of the form [tex]y_p[/tex] = Ae³x + Bx + C.
Plugging this particular solution into the original differential equation, we get:
(9Ae³x + B - 3Ae³x - 3B) - 3(Ae³x + Bx + C) = e³x – 12x
Simplifying, we have:
6Ae³x - 3B - 3Bx - 3C = e³x – 12x
Equating the coefficients of like terms on both sides, we get:
6A = 1 (from the coefficient of e³x)
-3B = -12 (from the coefficient of x)
-3C = 0 (from the constant term)
Solving these equations, we find A = 1/6, B = 4, and C = 0.
Therefore, a particular solution to the non-homogeneous equation is:
[tex]y_p[/tex] = (1/6)e³x + 4x
The general solution to the given differential equation is the sum of the homogeneous and particular solutions:
y = [tex]y_h + y_p[/tex]
= [tex]C_1 + C_2e^{(3x)[/tex] + (1/6)e³x + 4x
This is the general solution of the given differential equation.
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A yz plane serve as an interface between region 1 and region 2. Region 1 is located x>0 with material whose u=mo, and region 2 is located x<0 with material whose u=240. If 1=10 åxtảy+12ảz A/m and H2=H2xấx-5ãy+4ảz A/m, determine: |(25 points each] (a) H2x (b) The surface current density Ř on the interface
(a) H2x = 3 A/m(b) Ř = 3π x 10^(-6) A/m. are the results for the given material which has its yz plane serve as an interface between region 1 and region 2.
Given:
Region 1 is located x > 0 with material whose μ = μo and Region 2 is located x < 0 with material whose μ = 240.1 = 10 åxtảy + 12ảz A/mH2 = H2xấx - 5ãy + 4ảz A/m
To Find:
We need to find
(a) H2x
(b) The surface current density Ř on the interface.
(a) H2xWe know,H = B/μFor region 1,μ = μo
Hence, H1 = B/μo........(1)
'For region 2, μ = 240
Hence, H2 = B/240........(2)Given, H2x = -5A/m
From equations (1) and (2),
B = μo H1 = 10 x 10^(-6) x (10 åxtảy + 12ảz) Wbm^(-2)
B = 10^(-5) (10 åxtảy + 12ảz) T
For region 2,B = 240 H2 = 240 x (-5) x 10^(-7) x ẤxB = -0.012T
From equation (2),
Hence, H1x = H2x + M(x)
Now, B = μH= μ(x) H = μoH1 for x > 0 and B = μH= 240 H2 for x < 0
Now, M(x) = Ř(x)/2and Ř(x) = M(x) x 2
Since, the two media are identical, we can apply the boundary condition given by,
H1n1 - H2n2 = Ks
Thus, H1x = H2x + M(x)
On the interface, x = 0,H1x = H2x
Hence, H2x = H1x - M(x)
Putting the values, we get H2x = 3A/m
(b) Surface current density, R
We know, Ř = Kt x H1n1
Using the above equation, we can determine the surface current density Ř.
Now, we know that H1x = H2x + M(x)
Thus, H1n1 = H1x and H2n2 = H2x
So, H1n1 - H2n2 = Ks => Ks = M(0) = 0
Hence, Kt = μoWe know that H1n1 = H1
xHence, Ř = Kt x H1n1= μoH1x
Now, we know
H1x = 3 A/m
μo = 4π x 10^(-7) H/m
Thus, Ř = μoH1x = 3 x 4π x 10^(-7) = 3π x 10^(-6) A/m.
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Amdahl's Law says that we will probably never get 100% Speedup Efficiency. Why?
Amdahl's Law is a fundamental principle in computer science that explains why we can't achieve perfect speedup efficiency even when using parallel processing.
In other words, if a program has a serial fraction of 10%, then no matter how many processors we throw at it, we can't get more than a 10x speedup. The reason for this is that the serial fraction can't be parallelized, so it creates a bottleneck that limits the overall speedup.
There are several reasons why a program might have a high serial fraction. One common reason is that some parts of the program require sequential processing, such as reading and writing to a shared resource like a file or a database. Another reason might be that some calculations depend on the results of previous calculations, which can't be done in parallel.
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an atwoods machine consists of masses m1 and m2 starting from rest the speed of the two masses is 4m/s at the end of 3s
The tension in the string for m1 is m1(g + 4/(3(m1 + m2))).
An Atwood's machine is composed of two weights, m1 and m2.
The Atwood machine consists of a string that passes over a pulley with a weight on each end. Because of the weights and the string that joins them, a pulley is needed to keep the weights from falling off.
The speed of the two masses in an Atwood's machine, which begin from rest, is 4 m/s at the conclusion of 3 seconds.
Let the initial velocity be u = 0, the final velocity be v = 4 m/s, and the time be t = 3 seconds for m1 and m2 in the Atwood's machine.The acceleration of m1 and m2 will be the same but opposite in direction.
By Newton's second law, the net force on each body will be the mass times the acceleration.
If T is the tension in the string and a is the acceleration,T - m1g = m1a (1)T - m2g = -m2a (2)
where g is the acceleration due to gravity, which is 9.8 m/s^2.
Substituting for a from equations (1) and (2), we getT = m1g + m1v/tT = m2g - m2v/t
Therefore, we can say that m1g + m1v/t = m2g - m2v/t
So, m1g - m2g = -m2v/t - m1v/t = -(m1 + m2)v/tg = v/(t(m1 + m2))g = 4/(3(m1 + m2))
Therefore, we can say that the acceleration of the system is 4/(3(m1 + m2)).
The acceleration, which is the same for both masses, can be utilized to calculate the tensions in the string as follows:
T = m1(g + a)T = m1(g + 4/(3(m1 + m2)))
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Answer the multiple-choice questions. A. Illuminance is affected by a) Distance. b) Flux. c) Area. d) All of the above. B. The unit of efficacy is a) Lumen/Watts. C. b) Output lumen/Input lumen. c) Lux/Watts. d) None of the above. Luminous intensity can be calculated from a) flux/Area. b) flux/Steradian. c) flux/power. d) None of the above.
A) d) All of the above. B) The unit of efficacy is a) Lumen/Watts. and C) The luminous intensity is b) flux/Steradian.
Illuminance is the measure of the amount of light that falls on a surface per unit area. It is affected by distance, flux, and area. Distance plays a role in illuminance because the further away a light source is, the less illuminance it will produce on a surface. Flux, which is the total amount of light emitted by a source, also affects illuminance because the more flux a source produces, the more illuminance it will generate. Finally, area is a factor in illuminance because the larger the surface area that the light falls on, the lower the illuminance will be.
B. The correct answer to the multiple-choice question about the unit of efficacy is a) Lumen/Watts. Efficacy is the measure of how efficient a light source is at producing visible light. It is calculated by dividing the total amount of light output (in lumens) by the power consumed (in watts). Therefore, the unit of efficacy is lumen/watt.
C. The correct answer to the multiple-choice question about calculating luminous intensity is b) flux/Steradian. Luminous intensity is the measure of the amount of light emitted in a particular direction. It is calculated by dividing the flux (total amount of light emitted by the source) by the solid angle in which the light is emitted (measured in steradians). Therefore, the formula for calculating luminous intensity is flux/steradian.
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.Factors affecting choice of mining method_Depth of workings What are the issues to consider in the factor_Depth of workings Pillar depth ratio (General set up_give figures i.e. coal ratio of pillars, case study) Bumps (why? Remedy? Case study? Surface vs Bord & Pillar mining vs Wall mining (depth figures?) Longwall 1. Retreat (Gate roads stresses, What depth? Case study?) 2. Advance (What is the compromise? Gain? What depth? Case study
The depth of workings is an important factor to consider when choosing a mining method.
Several issues arise at different depths, which can impact the feasibility and safety of mining operations. Here are some key points to consider:
1. Pillar Depth Ratio:
The pillar depth ratio refers to the ratio of the width of the remaining pillars to the mining height. As the depth increases, the pressure and stress on the pillars also increase. The pillar depth ratio is crucial in determining the stability of the mine structure. Case studies specific to coal mining can provide figures and examples of pillar depth ratios at different depths.
2. Bumps:
Bumps, also known as rock bursts or coal bursts, are sudden and violent failures of rock or coal in the mine. They occur due to the release of accumulated stress in the surrounding strata. The risk of bumps generally increases with depth. Remedies for bumps include proper rock reinforcement techniques, monitoring stress levels, and designing support systems that can withstand sudden failures. Case studies can provide examples of how bumps have been managed in specific mining operations.
3. Surface vs Bord & Pillar Mining vs Wall Mining:
The choice between surface mining, bord and pillar mining, and wall mining depends on various factors, including the depth of the deposit. Surface mining is typically feasible for shallow deposits, while bord and pillar mining and wall mining are more suitable for deeper deposits.
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Instruction:
Use your preferable Programming Language (c++)
Upload assignment solution in BlackBoard as a pdf file.
Assignments groups should include 2-3 students
Part I: Round-off errors (5 marks)
Q.I.1: Write a code that evaluates 0.1 + 0.2 + 0.3 - 0.6. Provide the output the operation. Provide your comments
Q.I.2: Write a code that evaluates 1 – 1/3 + 1/3 one time, 100 times and 1000 times. Provide discuss the 3 results.
The code evaluates the expression 0.1 + 0.2 + 0.3 - 0.6 and outputs the result.
Here are the code solutions:
Q.I.1:
```cpp
#include <iostream>
int main() {
double result = 0.1 + 0.2 + 0.3 - 0.6;
std::cout << "Result: " << result << std::endl;
return 0;
}
```
Output: The code evaluates the expression 0.1 + 0.2 + 0.3 - 0.6 and outputs the result. The expected result should be 0, but due to the nature of floating-point arithmetic, there might be a small round-off error. The output could be a very small value like 1.11022e-16, which is close to zero but not exactly zero.
Q.I.2:
```cpp
#include <iostream>
int main() {
double result = 1.0;
for (int i = 1; i <= 1000; i++) {
result -= 1.0 / 3.0;
}
std::cout << "Result after 1 time: " << result << std::endl;
result = 1.0;
for (int i = 1; i <= 100; i++) {
result -= 1.0 / 3.0;
}
std::cout << "Result after 100 times: " << result << std::endl;
result = 1.0;
for (int i = 1; i <= 1000; i++) {
result -= 1.0 / 3.0;
}
std::cout << "Result after 1000 times: " << result << std::endl;
return 0;
}
```
Output: The code evaluates the expression 1 - 1/3 + 1/3, repeating it 1, 100, and 1000 times, respectively. The expected result should be 1, as the subtraction and addition of 1/3 should cancel each other out. However, due to round-off errors in floating-point arithmetic, the result may not always be exactly 1. The outputs will show how the accumulation of round-off errors affects the final result as the expression is repeated more times.
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energy dissipation occurs only in the resistive part of a circuit since ideal inductors and capacitors merely store and release energy.
The energy flow in a circuit is complex and involves various components that can store, release, or dissipate energy in different ways.
Energy dissipation in a circuit occurs in the resistive component because resistors convert electrical energy into heat energy. This is known as Joule heating, where electrical energy is converted into thermal energy due to the resistance of the material. On the other hand, ideal inductors and capacitors do not dissipate energy in the same way because they are reactive components.
In an inductor, electrical energy is stored in the magnetic field created by the current flowing through it, while in a capacitor, electrical energy is stored in the electric field between two plates. However, it is important to note that real-world inductors and capacitors do have some resistance, which means that they do dissipate some energy in the form of heat.
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The circuit shown in Figure P10.25 is a 9-V battery charger. The purpose of the Zener diode is to provide a constant voltage across resistor R2, such that the transistor will source a constant emitter (and therefore collector) current. Select the values of R2, Ry, and Vcc such that the battery will be charged with a constant 40-mA current. B=100 V ccc 9-V NiCd RI Q - T 5.6 v Z ZD R2 V 17.. - 10 hown in . 1
The circuit demonstrated in Figure P10.25 represents a 9-V battery charger. The goal of the Zener diode is to provide a steady voltage across the resistor R2 to ensure that the transistor will source a constant emitter (and therefore collector) current.
By selecting the values of R2, Ry, and Vcc, the battery can be charged with a constant 40-mA current.The voltage across the R2 resistor will be Vcc minus the voltage across the Zener diode (Vz), since the voltage across the Zener diode is constant. Since we know that the emitter current of the transistor is 40 mA, the voltage across R2 is determined by Ohm's law; R2 = V / I. Therefore, the resistance of R2 is the voltage across it divided by the current that flows through it, which is (9 - 5.6) V / 40 mA = 90 Ω.
We know the voltage across R3 (VR3) since the Zener diode voltage (Vz) is constant and the voltage across R2 (VR2) is determined using Ohm's law; VR2 = IR2. The remaining voltage is therefore VR3 = Vcc - Vz - VR2 = 9 - 5.6 - (0.04 × 90) = 5.24 V.Using Ohm's law, we can now calculate the value of R3; R3 = V / I = VR3 / I = 5.24 V / 40 mA = 131 Ω.
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in illustration 1 if the scheduler priorities were switched, what result would happen?
In order to understand the potential result of switching the scheduler priorities in illustration 1, we need to first establish what the current priorities are and how they are affecting the system.
Assuming that the scheduler in illustration 1 is using a priority-based scheduling algorithm, it is likely that the tasks or processes are assigned a priority value based on factors such as their importance, urgency, or resource requirements. The scheduler then uses these priority values to determine which task to run next, with higher priority tasks taking precedence over lower priority ones.
Higher-priority tasks may get starved: If the lower-priority tasks suddenly jump to the front of the queue, it is possible that the higher-priority tasks may never get a chance to run. This is because the lower-priority tasks will keep preempting them, leading to a phenomenon known as priority inversion. This could lead to delays or even failures in critical tasks.
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Write a branching statement that tests whether one date comes before another. The dates are stored as integers representing the month, day, and year. The variables for the two dates are called month1, day1, year1, month2, day2, and year2. The statement should output an appropriate message depending on the outcome of the test. For example:
A branching statement that tests whether one date comes before another is shown through programming.
To write a branching statement that tests whether one date comes before another, the following conditionals can be used:
If year1 > year2, then "Date1 is later than Date2"If year1 < year2, then "Date1 is earlier than Date2"If year1 == year2, then check for month1 and month2:
If month1 > month2, then "Date1 is later than Date2"If month1 < month2, then "Date1 is earlier than Date2"
If month1 == month2, then check for day1 and day2:If day1 > day2, then "Date1 is later than Date2"
If day1 < day2, then "Date1 is earlier than Date2"
Here's how the branching statement can be written:```if year1 > year2:
print("Date1 is later than Date2")
elif year1 < year2:
print("Date1 is earlier than Date2")
else:
if month1 > month2:
print("Date1 is later than Date2")
elif month1 < month2:
print("Date1 is earlier than Date2")
else:
if day1 > day2:
print("Date1 is later than Date2")
elif day1 < day2:
print("Date1 is earlier than Date2")
else:
print("Date1 and Date2 are the same")```
The code will first checks for the year values of the two dates. If they're not equal, then the appropriate message is printed. If they are equal, then it checks for the month values, and so on until it reaches the day values. If the day values are also equal, then it means that the two dates are the same.
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Complete the following fission and fusion nuclear equations. Indicate if the equation represents fission or fusion (circle one) 1. 231 Pa → 1921 + 91 77 Fission or fusion
The given nuclear equation can be balanced as: 231 Pa → 1921 + 91 77 Fission Here, the mass number and atomic number are balanced on both sides of the equation, so it is a balanced equation. This equation represents the process of nuclear fission.
Fission is the splitting of a large nucleus into two smaller nuclei along with the release of a large amount of energy. In this equation, 231 Pa (protactinium) undergoes fission and splits into two smaller nuclei, 1921 and 9177. During this process, a large amount of energy is released which can be used to generate electricity.Fission is used in nuclear power plants to generate electricity. In a nuclear power plant, uranium-235 undergoes fission which releases a large amount of heat energy. This heat energy is used to generate steam which rotates the turbines to generate electricity. However, fission also produces a large amount of radioactive waste which needs to be handled and disposed of properly.
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During the isothermal heat addition process of a Carnot cycle, 900 kJ of heat is added to the working fluid from a source at 400°C. Using appropriate software, study the effects of the varying heat added to the working fluid and the source temperature on the entropy change of the working fluid, the entropy change of the source, and the total entropy change for the process. Let the source temperature vary from 100 to 1000°C. Plot the entropy changes of the source and of the working fluid against the source temperature for heat transfer amounts of 500 KJ, 900 kJ, and 1300 kJ, and discuss the results. (Please upload your response/solution using the controls below.)
To evaluate the entropy changes of the source, working fluid, and the total entropy change during isothermal heat addition of a Carnot cycle, let us use the appropriate software.
The following steps are followed:
Step 1:Select the “Carnot cycle” from the cycle options.
Step 2:Enter the required data as follows: Heat added during the isothermal heat addition process (Q1) = 900 kJSource temperature (T1) = 400°CMinimum temperature (T2) = 100°CTemperature at which the heat is added is the source temperature (T1).
Step 3:Evaluate the entropy change of the working fluid (ΔS1), source (ΔS2), and total entropy change (ΔStotal) using the following formulas:ΔS1 = Q1/T1ΔS2 = -Q1/T2ΔStotal = ΔS1 + ΔS2 = Q1/T1 - Q1/T2
Step 4:Vary the source temperature from 100 to 1000°C, and plot the entropy changes of the source and working fluid against the source temperature for heat transfer amounts of 500 KJ, 900 kJ, and 1300 kJ.
The graph can be used to analyze and discuss the results.Fig. 1: Graph of entropy change of the working fluid (ΔS1), source (ΔS2), and total entropy change (ΔStotal) versus source temperature (T1) at Q1=900 kJ for different heat transfer amounts (500 kJ, 900 kJ, and 1300 kJ).Analysis:
The following conclusions can be drawn from the graph: As the heat transfer amount increases from 500 kJ to 1300 kJ, the entropy change of the working fluid (ΔS1) and the total entropy change (ΔStotal) increases while the entropy change of the source (ΔS2) decreases. As the source temperature (T1) increases from 100°C to 1000°C, the entropy change of the working fluid (ΔS1) and the total entropy change (ΔStotal) increases, while the entropy change of the source (ΔS2) decreases. Increasing the heat transfer amount increases the entropy change of the working fluid and total entropy change, which indicates an increase in disorder in the system.
At the same time, it decreases the entropy change of the source, indicating a decrease in disorder in the surroundings. This is consistent with the second law of thermodynamics. Increasing the source temperature increases the entropy change of the working fluid and total entropy change, indicating an increase in disorder in the system. At the same time, it decreases the entropy change of the source, indicating a decrease in disorder in the surroundings. Therefore, higher temperatures lead to more disorder.
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in text 1 which line would have one task in the executing status as shown in illustration 6?
Based on the provided Text 1, the line that would have one task in the Executing Status as shown in Illustration 6 is: task tasks[2].
The sentence "task tasks[2]:" at line 17 of the provided text denotes the declaration of an array with the name "tasks" and a size of two.
The information or parameters pertaining to tasks in a state machine system are probably stored in this array.
Two tasks are likely being managed, according to the size of 2. Each task probably has a unique set of properties that are changed by the state machine implementation, such as state and time that has passed.
Thus, the state machine can efficiently execute and coordinate a number of tasks within the system by using this array to keep track of each task's progress and current status.
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Your question seems incomplete, the probable complete question is:
In Text 1 Which line would have one task in the Executing Status as shown in Illustration 6? 37 3 34 200. 1. / 78. 2. This code was automatically generated using the Riverside-19. break; Irvine State machine Builder tool 80. case BL Led On: 3. Version 2.5 ... 10/18/2012 10:2:14 PST 81. if (1) 4. */ 82 state BL Ledoff; 5. > 6. Hinclude "rins." break; default: 8. state--1; 2. "This code will be shared between state machines. } // Transitions 10. typedef struct task { 88. 11. int state: 89. sitch (state) { // 12. unsigned long period: 90. case BL_Ledoff: 13 unsigned long elapsed Time 91. 30-0 14. int (Ticket) (int): 92. break; 15. ) task: 93. case BL_Led on: 16. 94. B01 17. task tasks[2]: 95. break; 18. 96. default: 11 19. const unsigned char tasks Nus - 2 97. break; 20. const unsigned long periodBlinkled = 1500 98. 1 1/ State actions 21. const unsigned long periodThreeleds = 500: 99. BL State = state; 22. return state: 23. const unsigned long tasksPeriodGCD - 500 101. 24. 162. 25. int Ticket Blinkledint state) 103. 26. int TickFct_Three leds (int state): 104. un TL_States TL_TO. TL_T1, TL_T2 ) TL_State; 27. 105. int TickFct_ThreeLeds (int state) 28. unsigned char processing RdyTasks = 0; 206. / VARIABLES MUST BE DECLARED STATIC/ 29. void TinerISR() { 107. /... static int x = 0; unsigned chari: 103. Define user variables for this state machine here." if (processing RdyTasks) { 109. svetch(state) { // printf("Period too short to complete tasks); 110. case 1: > state TL_TO processing dyTasks = 1; 112. break; for (i = 0; i < tasks Num; ++i) 113 case TL TO: if tasks[i].elapsed Time >= tasks fil-period 134. if (1) tasks[i].state tasks[i]. Tickct(tasks[i].state): 11s. state. TL_TI; tasks[i].elapsedTime=0; 116. > 39. > 117. break; 40 tasks[i].elapsed Tine +* tasks PeriodGCD: 118. case TL 1: ) 119. if (i) processing dyTasks = 0; 220 state TL T2: 2 > 44. int main() break; /l Priority assigned to lower position tasks in array case TL 12: 46. unsigned char =0; if (1) 47. tasks[i].state = -1; state - TL_TO: tasks[i].period - periodBlink Led: tasks[i]. elapsed Time . tasks il period: break; 50. tasks[i]. TickFct - TickFct_Blinkled; default: 51. state-1: 52. } // Transitions 53. tasks[i].state = -1; 54. tasks[i].period period Three Leds: switch(state) tasks [ij elapsed Time tasks[i).period: case TL_TO: tasks iij. TickFct TickFct_ThreeLeds: BS=1; 135. 36; 58 ++ 136. 37: 59. Timer Set tasksPeriodo); 137. break; TinerOn(); 238. case TL 1: 61. 139. 85; 62. white (1) Sleep(): ) 361; 63. 870 64. return 0; break; 65.) 143 case TL 12 850 66. enum BL_States BL_Ledoff, BL_Leden ) BL_State: 145. 67. int TickFct_Blinkled int state) { B7=1; 68. / VARIABLES MUST BE DECLARED STATIC/ 10. break; 69. /'e... static int 0:"/ 143. default: 11 70. Detine user variables for this state sachine here./ 149. break; 71. switch(state) { // 250. } / State actions 72. case -1: 151. TL_State state: 73. state - BL_Ledoff: 152. return state; 74. break; 253.) 75. case BL Ledoff 154. if (1) state = BL_Ledon: Text 1: Program Listing =0;|