the helix nebula is a planetary nebula with an angular di- ameter of 16’ that is located approximately 200 pc from earth. 1. what is a planetary nebula? 2. calculate the diameter of the nebula.

Assuming that the is referring to a projectile launched vertically upwards, the speed u of the object at the height of (1/2)h max can be calculated using the conservation of energy principle.

At this height, the object has lost half of its initial potential energy, and this energy has been converted into kinetic energy. Therefore, the kinetic energy at this height is equal to half of the initial potential energy. Using the formula for potential energy (PE = mg h), we can calculate the initial potential energy (PE = mg h max). Then, using the formula for kinetic energy (KE = 1/2 mv^2), we can solve for the velocity u at (1/2)h max in terms of v and g:

PE = KE

mg h max = 1/2 mv^2

g h max = 1/2 v^2

v = sqrt(2ghmax)

u = sqrt(2ghmax/2)

u = sqrt(g h max)

Therefore, the speed u of the object at the height of (1/2)h max is equal to the square root of half of the maximum height times the acceleration due to gravity.

Learn more about energy principle here;

https://brainly.com/question/15347216

#SPJ11

The magnitude of the magnetic field at that point is approximately              1.65 x 10⁻⁶ Tesla.

The magnitude of the magnetic field at the given point, we can use the relationship between the electric and magnetic fields in an electromagnetic wave: E = cB, where E is the electric field, B is the magnetic field, and c is the speed of light.
We can rearrange this equation to solve for B: B = E/c
Plugging in the given values, we get:
B = (381 j + 310 k) n/c / 3 x 10⁸ m/s

To calculate the magnitude of this vector, we can use the Pythagorean theorem: |B| = sqrt(Bj² + Bk²)
where |B| represents the magnitude of B.
Plugging in the values we get:
|B| = sqrt((381/3 x 10⁸)² + (310/3 x 10⁸)²)
|B| = 4.04 x 10⁻⁹ T (rounded to 3 significant figures)
B = E / c

To know more about magnetic field visit:-

https://brainly.com/question/24397546

#SPJ11

According to the kinetic molecular theory of gases, the volume of the gas particles, which can be atoms or molecules, is considered to be negligible compared to the volume of the container that they occupy. The gas particles are assumed to be point masses.

This assumption is based on the fact that at normal temperatures and pressures, the space between gas particles is much larger than the size of the particles themselves. Therefore, the particles can be treated as point masses without significantly affecting the overall behavior of the gas.

The kinetic molecular theory of gases provides a useful framework for understanding the behavior of gases at the molecular level, and helps to explain many of the observed properties of gases, such as their pressure, volume, temperature, and the relationships between them, such as the ideal gas law.

To know more about kinetic molecular refer here

https://brainly.com/question/1869811#

#SPJ11

The volume of the xenon gas sample is 0.040 L or 40.0 mL.

To find the volume of the xenon gas sample, we need to use the ideal gas law equation:
PV = nRT
where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.
We can rearrange the equation to solve for V:
V = nRT/P
To find n, we can use the molar mass of xenon, which is 131.3 g/mol.
n = m/M
where m is the mass of the sample (165 g) and M is the molar mass.
n = 165 g / 131.3 g/mol = 1.257 mol
Now we can substitute the values into the equation:
V = (1.257 mol)(0.08206 L·atm/mol·K)(297 K) / (617 mmHg)(1 atm/760 mmHg)
Note that we converted the pressure from mmHg to atm.
Simplifying the equation, we get:
V = 0.040 L or 40.0 mL
Therefore, the volume of the xenon gas sample is 0.040 L or 40.0 mL.
To know more about ideal gas law visit:

https://brainly.com/question/28257995

#SPJ11

Frodo's acceleration when pulled by Sam with a force of 10 N, considering the friction between Frodo and the ground (7 N), is 0.075 m/s².

To determine Frodo's acceleration, we need to consider the forces acting on him. The force applied by Sam is 10 N, and the friction between Frodo and the ground is 7 N.

The net force acting on Frodo can be calculated by subtracting the frictional force from the applied force: 10 N - 7 N = 3 N. According to Newton's second law of motion, the net force is equal to the product of mass and acceleration, so we can rearrange the formula to solve for acceleration: acceleration = net force / mass.

Plugging in the values, we get acceleration = 3 N / 40 kg = 0.075 m/s². Therefore, Frodo's acceleration in this scenario is 0.075 m/s².

Learn more about friction here

brainly.com/question/28356847

#SPJ11

13.20 is the absolute magnitude of this Barnard’s Star (HIP 87937). Option D) is correct .

Absolute magnitude (M) is the measure of a star's intrinsic brightness, or how bright it would appear if it were located at a standard distance of 10 parsecs (32.6 light-years) from Earth. This is different from apparent magnitude, which is a measure of how bright a star appears from Earth.

Absolute magnitude is calculated based on a star's luminosity, or the total amount of energy it emits per second, and its distance from Earth. A star's absolute magnitude can provide important information about its physical characteristics, such as its size and temperature

To find the absolute magnitude of Barnard's Star (HIP 87937) in Stellarium, follow these steps:

1. Open Stellarium.
2. Locate and click on Barnard's Star (HIP 87937) in the sky view.
3. Observe the information panel on the top left side of the Stellarium window.

Therefore,  the absolute magnitude of Barnard's Star is 13.20. So,correct answer is: D) 13.20

To know more about Magnitude refer here :

https://brainly.com/question/30337362

#SPJ11

Based on the terms and information provided, here is a breakdown of the properties for asteroids and Kuiper Belt Objects (KBOs):

1. Vesta: This is a property of asteroids, as Vesta is one of the largest asteroids in the asteroid belt between Mars and Jupiter.

2. Similar in composition to comets (mostly rock and metals): This is a property of asteroids, as they are primarily composed of rock and metals, whereas KBOs are mostly composed of ices.

3. Majority are small bodies: This is a property of both asteroids and KBOs, as both types of objects consist of numerous small celestial bodies.

4. Mostly reside in a belt between Mars and Jupiter: This is a property of asteroids, as the asteroid belt is located between the orbits of Mars and Jupiter.

5. Mostly reside in a belt extending 20 AU beyond the orbit of Neptune: This is a property of KBOs, as the Kuiper Belt extends from about 30 to 50 AU from the Sun.

6. Pluto: This is a property of KBOs, as Pluto is considered a dwarf planet and is located within the Kuiper Belt.

7. Similarities to some moons: This is a property of both asteroids and KBOs, as both types of objects can have characteristics and compositions similar to certain moons in our solar system.
To know more about Kuiper Belt, click here;

https://brainly.com/question/25583240

#SPJ11

The distance between the screen and the lens is 144 cm.

The height of the image of a 3.0 cm tall person on the screen is 34.3 cm.

We can use the thin lens equation to determine the distance between the screen and the lens:

1/f = 1/do + 1/di

1/di = 1/f - 1/do

1/di = 1/12.0 cm - 1/12.6 cm

1/di = 0.0833 cm⁻¹

di = 12.0 cm / 0.0833 cm⁻¹

di = 144 cm

To find the height of the image of a 3.0 cm tall person on the screen, we can use the magnification equation:

m = -di/do

m = -di/do

m = -(144 cm)/(12.6 cm)

m = -11.43

height of image = magnification x height of object

height of image = (-11.43) x (3.0 cm)

height of image = -34.3 cm

Learn more about optic: https://brainly.com/question/31448088

#SPJ11

The numerical value for the position of the S on the optical bench is given by option B, which is 547 mm.

This value represents the distance between the S and the starting point of the optical bench. The optical bench is a tool used to measure and test the properties of light, such as reflection and refraction.

By knowing the precise position of the objects on the optical bench, one can accurately measure and analyze the behavior of light. Therefore, it is essential to know the numerical value for the position of the S on the optical bench to perform accurate experiments and obtain reliable results.

To know more about optical bench click on below link:

https://brainly.com/question/31576139#

#SPJ11

If the Fed wants to lower the federal funds rate, it should buy government securities in the open market. This will increase the amount of money available in the banking system, leading to a decrease in the federal funds rate.

Selling government securities in the open market would have the opposite effect and raise the federal funds rate. Increasing the reserve ratio would require banks to hold more reserves and would also raise the federal funds rate. Increasing the discount rate would make borrowing from the Fed more expensive, which could indirectly increase the federal funds rate.

If the Fed wants to lower the federal funds rate, it should d. buy government securities in the open market.

By purchasing government securities, the Fed increases the supply of money in the economy. This results in a lower federal funds rate as banks have more funds available for lending, leading to increased demand for loans and lower borrowing costs.

To know more about Federal visit:

https://brainly.com/question/8305583

#SPJ11

The energy of a photon in a radio wave from an AM station with a broadcast frequency of 1580 kHz is approximately 6.55 x 10^-9 eV.

The energy of a photon in a radio wave can be calculated using the equation E=hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the wave.

In this case, the frequency of the AM station broadcast is given as 1580 kHz, which can be converted to 1.58 x 10^6 Hz.

Using the equation E=hf, we can calculate the energy of the photon as follows:

E = hf = (6.626 x 10^-34 J s) x (1.58 x 10^6 Hz) = 1.05 x 10^-26 J

To convert the energy from photon to electronvolts (eV), we can use the conversion factor 1 eV = 1.602 x 10^-19 J:

E = (1.05 x 10^-26 J) / (1.602 x 10^-19 J/eV

E = 6.55 x 10^-9 eV

For more such questions on photon:

https://brainly.com/question/20912241

#SPJ11

Answer:

12×8=848

Explanation:

repell forces

The Federalist views advocated for a strong central government, separation of powers, checks and balances, and the ratification of the United States Constitution.

The Federalist views, as expressed in a series of essays known as The Federalist Papers, emphasized the need for a strong central government to maintain stability and protect individual liberties. They believed that a system of checks and balances, with power divided between the three branches of government (legislative, executive, and judicial), would prevent the concentration of power and safeguard against tyranny. The Federalists supported the ratification of the United States Constitution, arguing that it would provide a more effective government compared to the Articles of Confederation. They saw the Constitution as a means to unite the states, promote commerce, and establish a strong national defense, ensuring the success and longevity of the young nation.

learn more about Federalist here:

https://brainly.com/question/14385827

#SPJ11

The half-life, T, is approximately 1.82 hours

A radioactive material's half-life is the time it takes for half of the material to decay. In this case, the material produces 1130 decays per minute initially and 170 decays per minute after 5 hours. To find the half-life, we can use the formula:

N(t) = N0 * (1/2)^(t/T),

where N(t) is the number of decays per minute at time t, N0 is the initial number of decays per minute, t is the time elapsed, and T is the half-life.

To solve for the unknown exponent, we can rearrange the formula:

T = t * (log(1/2) / log(N(t)/N0)).

Plugging in the given values, we get:

T = 5 hours * (log(1/2) / log(170/1130)).

After calculating, we find that, T=1.82 hours.

To know more about the half-life, click here;

https://brainly.com/question/24710827

#SPJ11

The amusement park ride begins with the passenger compartment at rest at point A. As it moves along the track to point B, the compartment is in free fall due to gravity. The distance between points A and B is 3R/4.

The force acting on the passenger compartment is gravity, which causes it to accelerate downward as it moves from point A to point B. Once the compartment reaches point B, it is no longer in free fall and the force acting on it is centripetal force, which keeps it moving in a circular path along the arc. The dimensions of the passenger compartment are negligible compared to R, which means that its mass can be considered to be concentrated at a single point. This simplifies the calculations involved in determining the ride's motion.

When the passenger compartment is released from rest at point A, it is in free fall between points A and B, which are 3R/4 apart. During this free fall, the gravitational potential energy is being converted into kinetic energy. As it moves along the circular arc of radius R between points B and D, the compartment's speed is determined by the conservation of mechanical energy.

To know more about gravity visit:

https://brainly.com/question/31321801

#SPJ11

The mechanical work output of the engine during one cycle can be calculated by subtracting the amount of heat discarded from the amount of heat taken in: Mechanical work output = heat taken in - heat discarded
Mechanical work output = 8900 j - 6500 j
Mechanical work output = 2400 j

Therefore, the mechanical work output of the engine during one cycle is 2400 joules.

The thermal efficiency of the engine can be calculated using the formula:

Thermal efficiency = (mechanical work output / heat taken in) x 100%

Plugging in the values we have:

Thermal efficiency = (2400 j / 8900 j) x 100%
Thermal efficiency = 0.2697 x 100%
Thermal efficiency = 26.97%

Therefore, the thermal efficiency of the engine is 26.97%.

The mechanical work output of the engine during one cycle can be calculated using the following formula:

Work output = Heat input - Heat discarded

In this case, the heat input is 8900 J and the heat discarded is 6500 J. So, the work output can be calculated as:

Work output = 8900 J - 6500 J = 2400 J

The thermal efficiency of the engine can be calculated using the following formula:

Thermal efficiency = (Work output / Heat input) * 100%

Plugging in the values we found:

Thermal efficiency = (2400 J / 8900 J) * 100% = 26.97%

So, the mechanical work output of the engine during one cycle is 2400 J and the thermal efficiency of the engine is approximately 26.97%.

To know more about heat visit:

https://brainly.com/question/30603212

#SPJ11

The Carnot engine delivers 93.75J of work per cycle and the work supplied per cycle to remove 1000J as heat from the cold reservoir is 230.94 J

(a) A Carnot engine operates between two reservoirs and follows a reversible cycle. In this case, the engine operates between a hot reservoir at 320K and a cold one at 260K and absorbs 500J as heat per cycle at the hot reservoir. We can use the Carnot efficiency formula to find the work delivered per cycle:

Efficiency = (Th - Tc) / Th
Efficiency = (320K - 260K) / 320K
Efficiency = 0.1875 or 18.75%

Therefore, the work delivered per cycle can be found by multiplying the efficiency by the heat absorbed:

Work delivered = Efficiency x Heat absorbed
Work delivered = 0.1875 x 500J
Work delivered = 93.75J

(b) If the Carnot engine operates in reverse and functions as a refrigerator between the same two reservoirs, we need to calculate the work that must be supplied per cycle to remove 1000J as heat from the cold reservoir. The coefficient of performance (COP) of a refrigerator is defined as the ratio of heat removed from the cold reservoir to the work supplied to the refrigerator. The COP can be calculated as follows:

COP = Tc / (Th - Tc)
COP = 260K / (320K - 260K)
COP = 4.33  

Therefore, the work supplied per cycle can be found by multiplying the COP by the heat removed from the cold reservoir:

Work supplied = Heat removed / COP
Work supplied = 1000J / 4.33
Work supplied = 230.94 J

To know more about the Carnot engine, click here;

https://brainly.com/question/14680478

#SPJ11

The amount of autonomous consumption expenditures is 50. Your answer is: 50.

The amount of autonomous consumption expenditures is 50. This is because autonomous consumption expenditures are the amount of spending that occurs regardless of income. In this consumption function, the constant term of 50 represents the autonomous consumption expenditures.
                                          the amount of autonomous consumption expenditures in the consumption function C = 50 + .80YD, you need to identify the constant term, which is the part of the equation not dependent on YD (disposable income).

In this consumption function, the constant term is 50. Therefore, the amount of autonomous consumption expenditures is 50. Your answer is: 50.

Learn more about consumption function

brainly.com/question/31663793

#SPJ11

The angular speed of the disc is 2π radians per second.

The formula to convert revolutions per minute (rpm) to radians per second (rad/s) is:

angular speed (rad/s) = (2π / 60) x rpm

where 2π is the conversion factor from revolutions to radians.

Substituting the given value of 60 rpm into the formula, we get:

angular speed (rad/s) = (2π / 60) x 60

= 2π radians per second

Therefore, the angular speed of the disc is 2π radians per second.

Click the below link, to learn more about Angular speed:

https://brainly.com/question/28439806

#SPJ11

the metal's work function when it is illuminated by light with a wavelength less than 386 nm is 5.13 x  10⁻¹⁹ J.

To determine the metal's work function, we can use the equation:

energy of photon = work function + kinetic energy of electron

Since we know that electrons are emitted only when the light's wavelength is less than 386 nm, we can use the following equation to find the energy of the photon:

the energy of photon = (hc) / wavelength

where h is Planck's constant, c is the speed of light, and wavelength is the given wavelength of less than 386 nm.

Substituting the values, we get:

energy of photon = [(6.626 x 10⁻³⁴ J s) x (3.00 x 10⁸ m/s)] / (386 x 10⁻⁹ m)

energy of photon = 5.13 x 10⁻¹⁹ J

Now we can use the equation to find the work function:

work function = energy of photon - kinetic energy of the electron

Since there is no greater wavelength for which electrons are emitted, we know that the kinetic energy of the electrons is zero. Therefore, the work function is simply equal to the energy of the photon:

work function = 5.13 x  10⁻¹⁹ J

So the metal's work function is 5.13 x  10⁻¹⁹ J.

To learn more about frequency  visit: https://brainly.com/question/15946945

#SPJ11

You have been hired as an expert witness in a court case involving an automobile accident. The accident involved car A of mass 1500 kg which crashed into stationary car B of mass 1100 kg. The driver of car A applied his brakes 15 m before he skidded and crashed into car B. After the collision, car A slid 18 m while car B slid 30 m. By presenting these calculations and comparing the energy of car A to the energy required to stop, we can prove to the court that the driver of car A was exceeding the 55-mph speed limit before applying the brakes.

To prove to the court that the driver of car A was exceeding the 55-mph speed limit before applying his brakes, we can analyze the physics of the collision and the subsequent skidding of both cars.

First, let’s calculate the initial velocities of car A and car B before the collision. We can use the conservation of momentum:

Initial momentum of car A = Final momentum of car A + Final momentum of car B

(mass of car A) × (initial velocity of car A) = (mass of car A) × (final velocity of car A) + (mass of car B) × (final velocity of car B)

Since car B is stationary, its final velocity is 0. Therefore, we have:

1500 kg × (initial velocity of car A) = 1500 kg × (final velocity of car A) + 1100 kg × 0

From this equation, we can determine the initial velocity of car A.

Next, we need to calculate the kinetic energy of car A before applying the brakes. The kinetic energy is given by:

Kinetic energy = 0.5 × (mass of car A) × (initial velocity of car A)^2

By calculating the kinetic energy, we can determine the initial energy possessed by car A.

If the calculated kinetic energy is greater than the energy required to overcome the frictional force and bring car A to a stop, we can conclude that car A was traveling at a speed higher than the speed limit. The frictional force can be calculated using the coefficient of kinetic friction and the weight of car A.

Learn more about momentum here:

https://brainly.com/question/30677308

#SPJ11

The largest allowable length of the aluminum bar ab would be determined by the maximum length that maintains the required diameter for each centric load magnitude.

To determine the largest allowable length of the aluminum bar ab for a centric load of magnitude (a) 150 kn, (b) 90 kn, (c) 25 kn using aluminum alloy 2014-t6, we need to use the formula for the maximum allowable stress:
σ = P / A
Where σ is the maximum allowable stress, P is the centric load magnitude, and A is the cross-sectional area of the aluminum bar.
For aluminum alloy 2014-t6, the maximum allowable stress is 324 MPa.
(a) For a centric load of 150 kn, the cross-sectional area required would be:
A = P / σ = (150,000 N) / (324 MPa) = 463.0 mm^2
Using the formula for the area of a circle, we can determine the diameter of the required aluminum bar:
A = πd^2 / 4
d = √(4A / π) = √(4(463.0 mm^2) / π) = 24.3 mm
Therefore, the largest allowable length of the aluminum bar ab would be determined by the maximum length that maintains a diameter of 24.3 mm.
(b) For a centric load of 90 kn, the required diameter would be:
d = √(4(90,000 N) / π(324 MPa)) = 19.8 mm
(c) For a centric load of 25 kn, the required diameter would be:
d = √(4(25,000 N) / π(324 MPa)) = 12.1 mm

To know more about magnitude visit:

brainly.com/question/28173919

#SPJ11

The type of inhibitor from a Dixon Plot (1/V vs [Inhibitor]) can determine by examining the intersection points of the lines in the plot.

A Dixon plot is a graph used to determine the type of inhibitor in a reaction. The slope of the line on the graph can help identify the type of inhibitor present. If the line on the Dixon plot intersects with the y-axis (1/V axis), then the inhibitor is a competitive inhibitor. This is because a competitive inhibitor competes with the substrate for the active site of the enzyme. As the concentration of the inhibitor increases, the rate of the reaction decreases, resulting in a higher value on the y-axis.

If the line on the Dixon plot does not intersect with the y-axis, but instead intersects with the x-axis ([Inhibitor] axis), then the inhibitor is a non-competitive inhibitor. This type of inhibitor binds to the enzyme at a site other than the active site, altering the shape of the enzyme and reducing its activity. This results in a decrease in the rate of the reaction without affecting the affinity of the enzyme for the substrate.

In conclusion, a Dixon plot can help determine the type of inhibitor present in a reaction by analyzing the slope of the line on the graph. If the line intersects with the y-axis, the inhibitor is competitive, and if it intersects with the x-axis, the inhibitor is non-competitive.

Learn more about inhibitor: https://brainly.com/question/31819551

#SPJ11

The center of Lake Superior is depressed by 5.2 meters due to the centrifugal force at a radius of 162 km and a latitude of 47°.

When a body rotates, objects on its surface are subject to centrifugal force which causes them to move away from the center.

In this case, Lake Superior is assumed to be at rest with respect to Earth and a circle of radius 162 km at a latitude of 47° is drawn around it.

Using the formula for centrifugal force, the depth that the center of the lake is depressed with respect to the shore is calculated to be 5.2 meters.

This means that the water at the center of Lake Superior is pushed outwards due to the centrifugal force, causing it to be shallower than the shore.

Understanding the effects of centrifugal force is important in many areas of science and engineering.

For more such questions on force, click on:

https://brainly.com/question/388851

#SPJ11

After one year of continuous random walking on a flat plane, the expected distance from the student's starting point is 0. (b) If the student wandered in 3D space instead, the expected distance from the origin would still be 0.

To understand why the student's expected distance from the starting point would be approximately zero, it is helpful to consider the concept of a random walk. A random walk is a mathematical model that describes the path of a particle that moves randomly in space or time. In the case of the physics student, each step they take is random and has an equal probability of moving in any direction. Over time, these steps will result in the student moving in all directions equally, resulting in an expected distance of zero from the starting point. In 3D space, the student would have more directions available to them, which means that they have a greater chance of moving away from the origin. However, the exact distance from the origin would still be difficult to determine due to the random nature of the steps. This is because the student could take steps in any direction, including back towards the origin.

In a random walk on a flat plane, the steps taken in each direction will average out over time, and the net displacement from the starting point will approach 0. This is because the student has an equal probability of taking steps in any direction, and thus, the steps tend to cancel each other out over a long period. (b) Similarly, in a 3D random walk, the steps taken in each direction (x, y, and z) will also average out over time, leading to a net displacement of 0 from the origin. Just like in the 2D case, the student has an equal probability of taking steps in any direction, so the steps tend to cancel each other out over a long period.

To know more about flat visit:

https://brainly.com/question/31227125

#SPJ11

The value of voltage is [tex]v(t) = 4 e^{(-t)} + 4 t e^{(-t)}[/tex].

To solve the differential equation v'' + 2v' + v = 0 for the given initial conditions, we can first find the characteristic equation by assuming a solution of the form v(t) = e^(rt). Substituting this into the differential equation, we get:

[tex]r^2 e^{(rt)} + 2r e^{(rt)} + e^{(rt)} = 0[/tex]

Simplifying this equation by factoring out [tex]e^{(rt)}[/tex], we get:

[tex]e^{(rt)} (r^2 + 2r + 1) = 0[/tex]

This can be further simplified by factoring the quadratic expression:

[tex]e^{(rt)} (r + 1)^2 = 0[/tex]

Thus, we have two possible solutions:

[tex]v1(t) = e^{(-t)}\\v2(t) = t e^{(-t)}[/tex]

Using the initial conditions v(0) = 4v and dv(0)/dt = 0, we can find the constants of integration for each solution. For v1(t), we have:

v1(0) = c1 = 4

For v2(t), we have:

v2(0) = c2 = 0

dv2/dt(0) = c1 - c2 = 4

Therefore, the general solution to the differential equation is:

[tex]v(t) = c1 e^{(-t)} + c2 t e^{(-t)}[/tex]

Using the constants of integration we found earlier, we get:

[tex]v(t) = 4 e^{(-t)} + 4 t e^{(-t)}[/tex]

This is the solution for the natural response of the RLC circuit described by the given differential equation and initial conditions. The term "natural response" refers to the behavior of the circuit without any external stimulus, such as an applied voltage or current.

The solution tells us how the voltage across the circuit varies over time due to the inherent properties of the circuit components.

To learn more about voltage refer here:

https://brainly.com/question/13521443

#SPJ11

To find the final displacement from where the cyclist started after riding 9 km due east, 10 km 20° west of north, and 7 km due west, we will use vector addition and the Pythagorean theorem.

Step 1: Break the vectors into components.

- First vector: 9 km due east -> x1 = 9 km, y1 = 0 km

- Second vector: 10 km 20° west of north -> x2 = -10 km * sin(20°), y2 = 10 km * cos(20°)

- Third vector: 7 km due west -> x3 = -7 km, y3 = 0 km

Step 2: Add the components.

- Total x-component: x1 + x2 + x3 = 9 - 10 * sin(20°) - 7

- Total y-component: y1 + y2 + y3 = 0 + 10 * cos(20°) + 0

Step 3: Calculate the magnitude and direction of the displacement vector.

- Magnitude: √((total x-component)² + (total y-component)²)

- Direction: tan⁻¹(total y-component / total x-component)

Using the calculations above, the final displacement from where the cyclist started is approximately 11.66 km, with a direction of approximately 33.84° north of east.

To know more about vector addition refer here

https://brainly.com/question/12937011#

#SPJ11

Considering that the diffusion is occurring in three dimensions the protein will travel 0.084 in 10 minutes.

The cell would travel approximately 0.00067 meters in 10 minutes.

A. To determine how far the protein would travel in 10 minutes, we can use the formula:

Distance = √(6Dt)

where D is the diffusion coefficient, t is the time, and √6 is a constant factor for 3-dimensional diffusion.

Substituting the given values, we get:

Distance = √(6 x 1.1 x cm^2[tex]cm^2[/tex] [tex]cm^2[/tex]/s x 600 s) = 0.084 meters

Therefore, the protein would travel approximately 0.084 meters in 10 minutes.

B. Similarly, for the cell, using the same formula, we get:

Distance = √(6 x 1.1 x [tex]10^-9[/tex] [tex]cm^2[/tex]/s x 600 s) = 0.00067 meters

Therefore, the cell would travel approximately 0.00067 meters in 10 minutes.

For more such answers in diffusion

https://brainly.com/question/94094

#SPJ11

The cell would travel about 3.8 micrometers in 10 minutes. Protein travels much further than the cell due to its higher diffusion coefficient.

A. To calculate how far the protein would travel in 10 minutes, we need to use the formula:

Distance = sqrt(6Dt)

where D is the diffusion coefficient, t is the time, and sqrt is the square root.

Plugging in the values we have:

Distance = sqrt(6 x 1.1 x 10^-6 cm^2/s x 10 minutes x 60 seconds/minute)

Note that we converted minutes to seconds to have all units in SI units. Now we can simplify and convert to meters:

Distance = 0.0095 meters or 9.5 millimeters

Therefore, the protein would travel about 9.5 millimeters in 10 minutes.

B. Similarly, to calculate how far the cell would travel in 10 minutes, we use the same formula but with the cell's diffusion coefficient:

Distance = sqrt(6 x 1.1 x 10^-9 cm^2/s x 10 minutes x 60 seconds/minute)

Simplifying and converting to meters:

Distance = 3.8 micrometers

Learn more about cell brainly.com/question/30046049

#SPJ11

There are 4 lines that connect opposite corners of a cube through its center.

To find the number of lines that connect opposite corners of a cube through its center, we need to visualize the cube and draw a line connecting two opposite corners that pass through the center of the cube.

We can see that there are two diagonals passing through the center of the cube. Each diagonal connects two opposite corners of the cube. Therefore, the total number of lines that connect opposite corners of the cube through its center is equal to the number of diagonals, which is 4.

In summary, the number of lines that connect opposite corners of a cube through its center is 4.

To know more about center, visit;

https://brainly.com/question/28021242

#SPJ11

An object's angular momentum changes by 10 kg m^2/s in 2 sec; the average torque acting on the object is 5 Nm.

Angular momentum is the product of moment of inertia and angular velocity, represented by L= Iω.

When the angular momentum changes by ΔL in time t, the average torque acting on the object is given by τ= ΔL/Δt. Here, ΔL= 10 kg m^2/s and Δt= 2 s.  

Substituting the values in the formula, we get τ= ΔL/Δt= 10 kg m^2/s ÷ 2 s= 5 Nm.

Therefore, the average torque acting on the object is 5 Nm. It is important to note that torque is the measure of how much a force acting on an object causes it to rotate, and it depends on both the magnitude and direction of the force.

Learn more about torque here:

https://brainly.com/question/31248352

#SPJ11