Answer:
diameter = 45.251 inches
Explanation:
initial length = 1.3
initial diameter = 45.27
tensile stress = σ = 1140
modulus E = 904672
v = 0.33
we calculate longitudinal strain = σ/E
= 1140/904672
= 0.0012601252
general relation for
v = -Ed/El
[tex]0.33=\frac{-Ed}{0.0012601252}[/tex]
we cross multiply
-Ed = 0.33 x 0.0012601252
= -0.00041584132in
[tex]\frac{df - 45.27}{45.27} =\frac{-0.00041584132}{1}[/tex]
when we cross multiply,
df - 45.27 = -0.00041584132*45.27
df - 45.27 = -0.018825136
df = -0.018825136 + 45.27
df = 45.251 inches
May you tell me the meaning of "Tolerance is a bitter tree, but its fruit is sweet "by Aristotle
Answer:
“Patience is bitter, but its fruit is sweet. With patience you can bear up under any adversity and survive any defeat. With patience you can control your destiny and have what you will. Patience is the key to contentment, for you and for those who must live with you. To be brave without patience can kill you.
Explanation:
Aristotle’s Ethical Doctrine of the Mean. According to Aristotle’s ethical rule about the Golden Mean, to use a thing with virtue is a kind of moderation, as it leads the particular thing being in a good condition, and allows for its functions to be performed in a proper manner.
Calculate the mean piston speed, bmep, and specific power of the spark-ignition engines in Figs. 1-4, 1-9, and 1-12 at their maximum rated power. Calculate the mean piston speed, bmep, and specific power of the diesel engines in Figs. 1-20, 1-21, 1-22, 1-23, and 1-24 at their maximum rated power. Briefly explain any significant differences a.direct injection four stroke cycle six cylinders turbocharged commins diesel engine.displaced volume10 litres, bore 125mm,sroke 136mm, compression ratio 16.3, maximum power 168 KW to 246 KW at rated speed of 2100 rpm.
explain the working and performance of a centrifugal clutch with a sketch
Answer:
A centrifugal clutch works, as the name suggests, through centrifugal force.
One of the most common methods is by mounting the clutch onto the parallel or taper crank shaft of the engine.
When the crank shaft rotates the shaft of the clutch rotates at the same speed as the engine
The tensile strength of brittle materials may be determined using a variation of Equation 8.1. Compute the critical crack tip radius for an Al2O3 specimen that experiences tensile fracture at an applied stress of 275 MPa (40,000 psi). Assume a critical surface crack length of 2 × 10−3 mm and a theoretical fracture strength of E/10, where E is the modulus of elasticity.
Answer:
0.39 nM
Explanation:
The critical crack tip radius from the equation
attached below
for fracture to occur the бm will have to reach the fracture strength of material
i.e. бm = E/10
from equation 2 attached below
St = ( 400 * a * бo^2 ) / E^2 ------ 3
Given : a = 2*10^-3 mm , бo = 275 MPa, E = 393 * 10^3 MPa ( gotten from table)
Input given values into equation 3
St = 3.9 * 10^-7 ≈ 0.39 nM
Two kilograms of air in a piston-cylinder assembly undergoes an isothermal
process from an initial state of 200 K, 300 kPa to 600 kPa.
How much work is done during the process, in kj?
Answer:
a) 0.39795 kJ/K
b) 79.589.37 kJ
Explanation:
m = Mass of air = 2 kg
Temperature = 200 K
P₁ = Initial pressure = 300 kPa
P₂ = Final pressure = 600 kPa
R = mass-specific gas constant for air = 287.058 J/kgK
a) For isentropic process
∴ Entropy is generated in the process is 0.39795 kJ/K
b)
∴ Amount of lost work is 79.589.37 kJ
You deposit $5,000 in a savings account that earns 8% simple interest per year. What is the minimum number of years you must wait to double your balance?
Answer:
It will take 12.5 years double the balance
Explanation:
As we know
A = P (1 + rt)
where A is the amount
P is the principal sum of money deposited
r is the rate of interest (per annum)
t is the time in years
Substituting the given values we get -
2P = P ( 1+ 0.08 * t)
2 = 1+ 0.08 * t
1 = 0.08 * t
t =
[tex]\frac{1}{0.08} \\\frac{100}{8} \\12.5[/tex] years
How to report the analysis and calorific values of fuel
Answer: Shawty my lil baddie
Explanation:
1. Which of these materials is the strongest?
O CHIPBOARD
O PLYWOOD
PINE
O BLOCKBOARD
MDF
Please help me with this question, very urgent, I will pay extra bonus points if done correctly.
Designing is a way to generate solutions to a real-world problem experienced by humans.
True
False
Stefan Lano needs displays that will show the musical instrument inventory in his chain of music stores that caters to musicians playing in world-class symphony orchestras in Basel, Switzerland; Buenos Aires, Argentina; and Philadelphia and New York in the United States. Design a form-fill interface for the inventory control of musical instruments in all four stores that could be used on a computer display screen. Assume that English will be the interface language.
Answer:
attached below is an example of the form
Explanation:
This type of form-fill can be described/developed based on the requirements or information needed by the organization in order to perfectly fulfill an order and also to retain customers by making the form very easy and interactive attached below is an example of such form fill interface
Which part of a machine control unit interacts with the machine tools through electric signals?=]
A machine control unit is the electronic hardware that stores information and controls the machine tools. This unit contains a data processing unit that stores and manipulates data, and a ___________ that interacts with the machine tools through electrical signals.
Answer:
control loop unit
Explanation:
Edmentum/Plato
two ways in accepting responsibility can help teenagers to maintain coach relations with parents
Answer:
1. It will help the teenagers gain the trust of their parents
2. It will help the teenagers obtain more privileges from their parents.
Explanation:
Responsibility is the state of accepting blame for a particular thing. A teenager who accepts responsibilities owns up to his mistakes and takes control over situations he is assigned to.
When teenagers accept responsibility for their actions, it helps the speaker to gain the trust of his parents who coach him in life. This trust will enable the parents to assign greater privileges to the teenagers because they believe they can handle them. Responsible teenagers do not engage in reckless activities.
what is the function of a fuse and its effect when not present?
Answer:
A fuse prevents an electrical object from receiving too much current. In the event too much electricity is received by an electrical component, the fuse is designed to melt and separate. There are several different types of fuses. The most common in the automotive industry is called a cartridge fuse. Cartridge fuses are held in place by spring clips and are easy to replace when necessary.
Explanation:
A current value of 0.000005 A is equal to
Α. 50 μΑ. .
B. 5 mA.
C.5 HA.
D. 50 mA.
A current value of 0.000005 A is equal to 5 HA.
What is Current?Current is a measure of rate. In physics, there are various rate quantities. For instance, velocity, which measures how quickly an item changes position, is a rate quantity.
Velocity is defined mathematically as the position change to time ratio. The rate at which an object changes its velocity is called acceleration, which is a rate quantity.
Acceleration is defined mathematically as the ratio of velocity change to time. Power, which measures the rate at which work is done on an object, is a rate quantity.
A current value of 0.000005 A is equal to 5 HA.
To learn more about current, refer to the link:
https://brainly.com/question/13076734
#SPJ2
A transformer is to be used to provide power for a computer disk drive that needs 6.4 V (rms) instead of the 120 V (rms) from the wall outlet. The number of turns in the primary is 300, and it delivers 500 mA (the secondary current) at an output voltage of 6.4 V (rms). (a) Should the transformer have more turns in the secondary compared to the primary, or fewer turns
Answer:
The secondary coil should have fewer turns compared to the primary coil.
Explanation:
[tex]N_p[/tex] = Number of turns in primary coil = 300
[tex]N_s[/tex] = Number of turns in secondary
[tex]V_p[/tex] = Voltage in primary coil = 120 V
[tex]V_s[/tex] = Voltage in secondary coil = 6.4 V
We have the relation
[tex]\dfrac{N_p}{N_s}=\dfrac{V_p}{V_s}\\\Rightarrow N_s=\dfrac{N_p}{V_p}\times V_s\\\Rightarrow N_s=\dfrac{300}{120}\times 6.4\\\Rightarrow N_s=16[/tex]
The secondary coil has 16 turns which is less than the turns in the primary coil.
An axial flow pump is to discharge 5 cusecs at an operating speed of 1450 rev/min. The inner and outer diameters of the impeller are to be 5.5 in. and 11 in. respectively. If the head developed according to the vector triangles is 20 ft, determine the angle of the vane tips at the inner and outer diameters and the corresponding diffuser blade angle (the diffuser blades are the stationary blades after the impeller).
Answer:
if you want it to go faster add chain
Explanation:
Which of the following can cause a flopping sound at the front of the engine
A) drive belt too loose
B) timing chain too loose
C) drive belt too tight
D) timing chain too tight
A rigid insulated tank is divided into 2 equal compartments by a thin rigid partition. One of the compartments contains air, assumed to be an ideal gas at 800 kPa and 300 K. The other compartment is under a vacuum. The partition is suddenly broken and the air rushes into the evacuated compartment. The tank pressure and temperature eventually equilibrate.
a. Define the system you will use and draw a labeled schematic.
b. Write the energy balance for the system, making simplifications as appropriate.
c. What is the final temperature of the gas, K?
d. What is the final pressure, kPa?
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Design a filter that has infinite DC gain, a gain of one from 1Hz to 100 Hz and filters (1storder) any signals above 100 Hz.a) Sketch the bode plotb) Sketch the s-planec) write the transfer function of the filterd) write the differential equatione) write out the unforced transient responsef) write out the frequency response
Answer:
Attached below are the sketches
answer :
c) G(s) = 100 / ( s + 100 )
d) y'(t) + 100Y(s) = 100 X(s)
e) g(t) = e^-100t u(t)
Explanation:
a) Sketch the bode plot
The filter here is a low pass filter
b) Sketch the s-plane
attached below. pole ( s ) is at 100
c) write the transfer function of the filter
Transfer function ; G(s) = 100 / ( s + 100 )
d) write the differential equation
Y(s) / X(s) = 100 / s + 100
Y(s) [ s + 100 ] = 100 X(s)
= sY(s) + 100Y = 100 X(s)
∴ differential equation = y'(t) + 100Y(s) = 100 X(s)
e) write out the unforced transient response
g(t) = e^-100t u(t)
f) write out the frequency response
attached below
A composite shaft with length L = 46 in is made by fitting an aluminum sleeve (Ga = 5 x 10^3 ksi) over a
steel core (Gs = 11 x10^3 ksi). The composite shaft is fixed against rotation at the wall A and has outside diameter da = 5 in. The steel core has diameter ds = 4 in. A torque TB = 3 kip. in is applied at B. % Matlab input: L = 46 Ga = 5 * 10^3 Gs = 11 * 10^3; da = 5; ds = 4; Tb = 3;
Determine the magnitude of the angle of twist at end B.
Answer:
Explanation:
Given the data in the question;
L = 46 in
Ga = 5 × 10³ ksi
Gs = 11 × 10³ ksi
Outside diameter da = 5 in
ds = 4 in
Tb = 3 kip.in
Now,
Ja = polar moment of Inertia of Aluminum;
Ja ⇒ π/32( 5⁴ - 4⁴ ) = π/32( 625 - 256 ) = π/32( 369 ) [tex]in^u[/tex]
Js = polar moment of inertia of steel
Js ⇒ π/32 ds⁴ = π/32( 4⁴ ) = π/32( 256 )
Ta is torque transmitted by Aluminum
Ts is torque transmitted by steel
{composite member }
T = Ta + Ts ------ let this be equation m1
Now, we use the relation;
T/J = G∅/L
JG∅ = TL
∅ = TL/GJ
so, for aluminum rod ∅[tex]_{alu[/tex] = TaLa/GaJa
for steel rod ∅[tex]_{steel[/tex] = TsLs/GsJs
but we know that, ∅a = ∅s = ∅[tex]_B[/tex]
so
[TaLa/GaJa] = [TsLs/GsJs]
also, we know that, La = Ls = L
∴ [Ta/GaJa] = [Ts/GsJs]
we solve for Ta
TaGsJs = TsGaJa
Ta = TsGaJa / GsJs
we substitute
Ta = [Ts(5 × 10³)( π/32( 369) )] / [ (11 × 10³)( π/32( 256 ) ) ]
Ta = 0.66Ts
now, we substitute 0.66Ts for Ta and 3 for T in equation 1
T = Ta + Ts
3 = 0.66Ts + Ts
3 = 1.66Ts
Ts = 3 / 1.66
Ts = 1.8072 ≈ 1.81 kip-in
so
∅[tex]_{steel[/tex] = TsLs / GsJs
we substitute
∅[tex]_{steel[/tex] = (1.81 × 46 ) / ( 11 × 10³ × π/32( 256 ) )
∅[tex]_{steel[/tex] = 83.26 / 276460.1535
∅[tex]_{steel[/tex] = 0.000301
∅[tex]_{steel[/tex] = 3.01 × 10⁻⁴ rad
so
∅[tex]_{steel[/tex] = ∅[tex]_B[/tex] = 3.01 × 10⁻⁴ rad
Therefore, the magnitude of the angle of twist at end B is 3.01 × 10⁻⁴ rad
Technician A says that ultra-high-strength steels (UHSS) are generally defined as those steels with tensile strengths greater than 700 MPa.
Technician B says that advanced high-strength steels (AHSS) are generally defined as those steels with tensile strengths from 375 MPa up to 1700
Who is right?
O A only
OB only
O Both A and B
O Neither A norb
Table of Contents
multimeter and the LCD is showing Hz. What's she measuring?
A. Resistance
B. Amplitude
C. Voltage
D. Frequency
Answer:
i think its d frequency
Explanation:
hz on a multimeter means frequency setting
A steam power plant is represented as a heat engine operating between two thermal reservoirs at 800 K and 300 K. The temperature of the steam in the boiler is 550 K and the temperature of the saturated water in the condenser is 330 K. The rates of heat transfer in the boiler and condenser are 4 MW and 2 MW, respectively. Please answer the following.
Required:
a. Represent the devices present in the heat engine and include their name along with the data given in the problem.
b. If this steam power plant were to operate as a reversible heat engine, with the boiler and condenser temperatures, what would be its thermal efficiency?
c. Use your result from part (b) to determine if the actual steam power plant can achieve such thermal efficiency. Justify your answer.
d. For the actual steam power plant is the Clausius inequality satisfied? Show you computation and discuss whether your result agrees or disagrees with your answer in part (c).
..................................................
Answer: yayyyy free sh.it
Explanation:
The inverted U-tube is used to measure the pressure difference between two points A and B in an inclined pipeline through which water flows. The differenceof level h=0.4m ; X=0.2; and Y=0.3m. Calculate the pressure difference between point B and A if the top of the manometer is filled with:
i) Air
ii) paraffin of relative density of 0.75
Answer:
i) 0.610 m or 610 mm
ii) 0.4 m or 400 mm
Explanation:
The pressure difference between the pipes is
a) Air
Pa + πha +Ha = Pb + πhb +Hb
Pa - Pb = π(hb-ha) + Hb-Ha
Relative density of air = 1.2754 kg /m3
Pa - Pb = 1.2754 * 0.4 + (0.3-0.2) = 0.610 m or 610 mm
b) paraffin of relative density of 0.75
Pa - Pb = π(hb-ha) + Hb-Ha
Pa - Pb = 0.75 * 0.4 + (0.3-0.2) = 0.4 m or 400 mm
Horizontal shear forces and, consequently, horizontal shear stresses are caused in a flexural member at those locations where the internal bending moment is changing along the beam span. The imbalance in the bending stress resultant forces acting on a portion of the cross-section demands an internal horizontal shear force for equilibrium.
a. True
b. False
Answer:
False
Explanation:
When the horizontal shear forces act on the surface there is transverse shear stress at a particular point which is equal in magnitude. Pure bending is less common than a non uniform bending because the beam is not in equilibrium.
Q.14
What is the most common way to isolate the CPU from the external circuit?
Select one:
A. OPTICAL ISOLATION
B. SMALL RELAYS
C. BRIDGE RECTIFIERS
D. RHEOSTATS
Answer:
A. optical isolation
Explanation:
well I can't really give a good explanation because I also saw the same question in my exams and option A was the correct answer
A hydrological system consists of five horizontal formations with an equal thickness of 10 m each. The hydraulic conductivities of the formations are 20, 10, 15, 50, and 1 m/day, respectively. Calculate equivalent horizontal and vertical hydraulic s conductivities. If the flow in the uppermost layer is at an angle of 30 away from the normal direction relative to the boundary, calculate flow directions in all the formations.
Answer: Hello The required formula is attached below
answer:
A) KH = 19.2 m/day , Kv = 4.045 m/day
B) flow directions : ∝1 = 30°, ∝2 = 16.102°, ∝3 = 23.62, ∝4 = 55.55°,
∝5 = 1.66°
Explanation:
Given data :
Thickness of five horizontal formations ( K ) = 10 m each
Hydraulic conductivities of formations ( b ) =
b1= 20, b2= 10, b3= 15, b4= 50 and b5 = 1 (m/day)
a)Determine the equivalent horizontal and vertical conductivities
kH ( equivalent horizontal conductivity )
= ∑ Kb / b = ( K1b1 + K2b2 + k3b3 + k4b4 + k5 b5 ) / b1 + b2 +b3+b4+b5
input given values into the above equation
kH = 960 / 50 = 19.2 m/day
Kv ( equivalent vertical conductivity )
= ∑( b / (b/k) ) = ( b1 + b2 + b3 + b4 + b5 ) / ( b1/k1 + b2/k2 + b3/k3 + b4/k4 + b5/k5 )
input given values into equation above
Kv = 50 / 12.36 = 4.045 m/day
b) Determine the flow directions in all the formations
given that ∝1 = 30° and Ki / kj = bi / bj
k1 /k2 = tan ∝1 / tan ∝2
20 / 10 = tan 30 / tan ∝2
∴ ∝2 = 16.102°
K2/k3 = tan 16.102 / tan ∝3
= 10 / 15 = tan 16.102 / tan ∝3
∴ ∝3 = 23.62
K3/k4 = tan ∝3 / tan ∝4
= 15 / 50 = tan 23.62 / tan ∝4
∴∝4 = 55.55°
k4 /k5 = tan ∝4 / tan∝5
= 50 / 1 = tan 55.55 / tan ∝5
∴ ∝5 = 1.66°
write three ways of soil investigation of a site