# steel sphere a of mass m is moving along a horizontal surface with constant speed v. identical steel sphere b is at rest and hangs on a string of length r attached to a support at point p, as shown in the figure above. the spheres collide, and as a result sphere a stops and sphere b swings a vertical height h before coming momentarily to rest. knowing values for which of the following will allow determination of the angular impulse on sphere b with respect to p due to the collision?

### James

Guys, does anyone know the answer?

get steel sphere a of mass m is moving along a horizontal surface with constant speed v. identical steel sphere b is at rest and hangs on a string of length r attached to a support at point p, as shown in the figure above. the spheres collide, and as a result sphere a stops and sphere b swings a vertical height h before coming momentarily to rest. knowing values for which of the following will allow determination of the angular impulse on sphere b with respect to p due to the collision? from EN Bilgi.

## Courseology

1. A blue sphere and a red sphere with the same diameter are released from rest at the top of a ramp. The red sphere takes a longer time to reach the bottom of the ramp. The spheres are then rolled off a horizontal table at the same time with the same speed and fall freely to the floor. Which sphere reached the floor first?

2. A 12 kg box sliding on a horizontal floor has an initial speed of 4.0 m/s. The coefficient of friction between the box and the floor is 0.20. The box moves a distance of 4.0 m in 2.0s. The magnitude of the change in momentum of the box during this time is most nearly

4. A rubber ball with the mass 0.20 kg is dropped vertically from a height of 1.5m above a floor. The ball bounces off the floor, and during the bounce 0.60 J of energy is dissipated. What is the maximum height of the ball after the bounce.

5. A sled slides down a hill with friction between the sled and hill but negligible air resistance. Which of the following must be correct about the resulting change in energy of the sled-earth system.

6. A student sets an object attached to a spring into oscillatory motion and uses a position sensor to record the displacement of the object from equilibrium as a function of time. A portion of the recorded data is shown in the figure below. The speed of the object at time t=0.65s is the most nearly equal to which of the following?

7. A student sets an object attached to a spring into oscillatory motion and uses a position sensor to record the displacement of the object from equilibrium as a function of time. A portion of the recorded data is shown in the figure below. The total distance traveled by the object between 0.35 s and 0.40 s is most nearly

8. A student sets an object attached to a spring into oscillatory motion and uses a position sensor to record the displacement of the object from equilibrium as a function of time. A portion of the recorded data is shown in the figure below. The frequency of oscillation is most nearly

9. An object has 4 forces acting on it. One force going north is 20 N, the next force is 5 N west, and 10 N to the south. What is the direction of the final force if the object is accelerating due east?

10. Block A of mass 2.0 kg is released from rest at the top of a 3.6 m long plane inclined at an angle of 30°, as shown in the figure below. After sliding on the horizontal surface, block A hits and sticks to block B, which is at rest and has mass 3.0 kg. Assume friction is negligible. The speed of the blocks after the collision is most nearly

11. A student is asked to move a box from ground level to the top of a loading dock platform, as shown in the figures below. In Figure 1, the student pushes the box up an incline with negligible friction. In Figure 2, the student lifts the box straight up from ground level to the loading dock platform. In which case does the student do more work on the box, and why?

12. Two charged conducting spheres are separated by a distance d, as shown in the figure below. One sphere has charge 5Q, the other has charge -Q, and the diameter of each sphere is much smaller than d. Each sphere exerts a force of magnitude F on the other. The spheres are brought together and touch briefly. After touching, the left sphere has charge 2Q. The spheres are then returned to their original locations. What is the magnitude of the new force between the spheres?

13. The wheel on a vehicle has a rotational inertia of 2.0 kgm². At the instant the wheel has a counterclockwise angular velocity of 6.0 rad/s, an average counterclockwise torque of 5.0 Nm is applied, and continues for 4.0 s. What is the change in angular momentum of the wheel?

15. A projectile fired into the air explodes and splits into two halves of equal mass that hit the ground at the same time. If the projectile had not exploded, it would have landed at point X, which is a distance R to the right of the launch point. After the explosion, one of the halves lands at point Y, which is a distance 2R to the right of the launch point. If air resistance is negligible, where did the other half land?

16. An elevator carrying a person of mass m is moving upward and slowing down. How does the magnitude F of the force exerted on the person by the elevator floor compare with the magnitude mg of the gravitational force?

17. A soft foam block of mass m slides without friction in the positive x-direction with speed v. At time t = 0, a student briefly pushes the block with a force probe in the positive x-direction. The graph below shows the force probe

18. A cart is moving on a level track in the positive x-direction. A force acting parallel to the x-axis is exerted on the cart. The graph below shows the net force exerted on the cart as a function of displacement. As the cart travels from x = 0 m to x = 4 m , what is the net change in the kinetic energy of the cart?

22. Two objects, A and B, move toward one another. Object A has twice the mass and half the speed of object B. Which of the following describes the forces the objects exert on each other when they collide and provides the best explanation?

23. Three spheres, with masses indicated below, are initially far away from each other, and the gravitational potential energy of the three-sphere system is zero. The spheres are then brought together until each sphere is a distance r from the other two, as shown below. What is the new gravitational potential energy of the three-sphere system?

## practice ap physics exams Flashcards

Study with Quizlet and memorize flashcards terms like 1. A blue sphere and a red sphere with the same diameter are released from rest at the top of a ramp. The red sphere takes a longer time to reach the bottom of the ramp. The spheres are then rolled off a horizontal table at the same time with the same speed and fall freely to the floor. Which sphere reached the floor first?, 2. A 12 kg box sliding on a horizontal floor has an initial speed of 4.0 m/s. The coefficient of friction between the box and the floor is 0.20. The box moves a distance of 4.0 m in 2.0s. The magnitude of the change in momentum of the box during this time is most nearly, 4. A rubber ball with the mass 0.20 kg is dropped vertically from a height of 1.5m above a floor. The ball bounces off the floor, and during the bounce 0.60 J of energy is dissipated. What is the maximum height of the ball after the bounce. and more.

## practice ap physics exams

11 studiers in the last hour

1. A blue sphere and a red sphere with the same diameter are released from rest at the top of a ramp. The red sphere takes a longer time to reach the bottom of the ramp. The spheres are then rolled off a horizontal table at the same time with the same speed and fall freely to the floor. Which sphere reached the floor first?

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Neither; the spheres reach the floor at the same time.

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2. A 12 kg box sliding on a horizontal floor has an initial speed of 4.0 m/s. The coefficient of friction between the box and the floor is 0.20. The box moves a distance of 4.0 m in 2.0s. The magnitude of the change in momentum of the box during this time is most nearly

Click card to see definition 👆

48 kg・m/s

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1/145 Created by Ella_Maulden

### Terms in this set (145)

1. A blue sphere and a red sphere with the same diameter are released from rest at the top of a ramp. The red sphere takes a longer time to reach the bottom of the ramp. The spheres are then rolled off a horizontal table at the same time with the same speed and fall freely to the floor. Which sphere reached the floor first?

Neither; the spheres reach the floor at the same time.

2. A 12 kg box sliding on a horizontal floor has an initial speed of 4.0 m/s. The coefficient of friction between the box and the floor is 0.20. The box moves a distance of 4.0 m in 2.0s. The magnitude of the change in momentum of the box during this time is most nearly

48 kg・m/s

4. A rubber ball with the mass 0.20 kg is dropped vertically from a height of 1.5m above a floor. The ball bounces off the floor, and during the bounce 0.60 J of energy is dissipated. What is the maximum height of the ball after the bounce.

1.2 m

5. A sled slides down a hill with friction between the sled and hill but negligible air resistance. Which of the following must be correct about the resulting change in energy of the sled-earth system.

The sum of the kinetic energy and the gravitational potential energy changes by the amount equal to the energy dissipated by friction.

6. A student sets an object attached to a spring into oscillatory motion and uses a position sensor to record the displacement of the object from equilibrium as a function of time. A portion of the recorded data is shown in the figure below. The speed of the object at time t=0.65s is the most nearly equal to which of the following?

The slope of the tangent to the best-fit sinusoidal curve at 0.65s

7. A student sets an object attached to a spring into oscillatory motion and uses a position sensor to record the displacement of the object from equilibrium as a function of time. A portion of the recorded data is shown in the figure below. The total distance traveled by the object between 0.35 s and 0.40 s is most nearly

2 cm

8. A student sets an object attached to a spring into oscillatory motion and uses a position sensor to record the displacement of the object from equilibrium as a function of time. A portion of the recorded data is shown in the figure below. The frequency of oscillation is most nearly

2.0 Hz

9. An object has 4 forces acting on it. One force going north is 20 N, the next force is 5 N west, and 10 N to the south. What is the direction of the final force if the object is accelerating due east?

Southeast

10. Block A of mass 2.0 kg is released from rest at the top of a 3.6 m long plane inclined at an angle of 30°, as shown in the figure below. After sliding on the horizontal surface, block A hits and sticks to block B, which is at rest and has mass 3.0 kg. Assume friction is negligible. The speed of the blocks after the collision is most nearly

2.4 m/s

11. A student is asked to move a box from ground level to the top of a loading dock platform, as shown in the figures below. In Figure 1, the student pushes the box up an incline with negligible friction. In Figure 2, the student lifts the box straight up from ground level to the loading dock platform. In which case does the student do more work on the box, and why?

Neither method, because the work is the same in both cases, since using the ramp decreases the force by the same factor that it increases the distance

12. Two charged conducting spheres are separated by a distance d, as shown in the figure below. One sphere has charge +5Q, the other has charge -Q, and the diameter of each sphere is much smaller than d. Each sphere exerts a force of magnitude F on the other. The spheres are brought together and touch briefly. After touching, the left sphere has charge +2Q. The spheres are then returned to their original locations. What is the magnitude of the new force between the spheres?

⅘ F

13. The wheel on a vehicle has a rotational inertia of 2.0 kg**m². At the instant the wheel has a counterclockwise angular velocity of 6.0 rad/s, an average counterclockwise torque of 5.0 N**m is applied, and continues for 4.0 s. What is the change in angular momentum of the wheel?

20 kg*m²

15. A projectile fired into the air explodes and splits into two halves of equal mass that hit the ground at the same time. If the projectile had not exploded, it would have landed at point X, which is a distance R to the right of the launch point. After the explosion, one of the halves lands at point Y, which is a distance 2R to the right of the launch point. If air resistance is negligible, where did the other half land?

## Steel Sphere a of Mass M Is Moving Along a Horizontal Surface With Constant Speed v Identical Steel Sphere B Is at Rest and Hangs on a String of Length R Attached to a Support at Point P as Shown in the Figure Above the Spheres Collide and as a Result Sphere a Stops and Sphere B Swings a Vertical Height H Before Coming Momentarily to Rest Knowing Values for Which of the Following Will Allow Determination of the Angular Impulse on Sphere B With Respect to P Due to the Collision? A M and v Only B M v and H C R and H D R M and v Physics 1 Can Someone Help Me With This Problem Please?

Steel sphere A of mass M is moving along a horizontal surface with constant speed v. Identical steel sphere B is at rest and hangs on a string of length R attached to a support at point P, as shown in the figure above. The spheres collide, and as a result sphere A stops and sphere B swings a vertical height h before coming momentarily to rest. Knowing values for which of the following will allow determination of the angular impulse on sphere B with respect to P due to the collision? (A) M and v only (B) M, v, and h (C) R and h (D) R, M, and v Physics 1: can someone help me with this problem please? from Reddit tagged as Respect Meme

Physics 1: can someone help me with this problem please?

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STEEL SPHERE A OF MASS M IS MOVING ALONG A HORIZONTAL SURFACE WITH CONSTANT SPEED V IDENTICAL STEEL SPHERE B IS AT REST AND HANGS ON A STRING OF LENGTH R ATTACHED TO A SUPPORT AT POINT P AS SHOWN IN THE FIGURE ABOVE THE SPHERES COLLIDE AND AS A RESULT SPHERE A STOPS AND SPHERE B SWINGS A VERTICAL HEIGHT H BEFORE COMING MOMENTARILY TO REST KNOWING VALUES FOR WHICH OF THE FOLLOWING WILL ALLOW DETERMINATION OF THE ANGULAR IMPULSE ON SPHERE B WITH RESPECT TO P DUE TO THE COLLISION? A M AND V ONLY B M V AND H C R AND H D R M AND V PHYSICS 1 CAN SOMEONE HELP ME WITH THIS PROBLEM PLEASE? MEME

**FOUND**ON 2019-05-05 10:08:14 BY ME.ME

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This moment for me is when I was 11 and my older cousin @IAmWriterBoy asked me to be in his videos. It was during that time I discovered my passion for film & acting . No matter how far my story goes the beginning will remain the same ❤️ I have nothing but respect for that man. https://t.co/rsFt0gWZFz: This moment for me is when I was 11 and my older cousin @IAmWriterBoy asked me to be in his videos. It was during that time I discovered my passion for film & acting . No matter how far my story goes the beginning will remain the same ❤️ I have nothing but respect for that man. https://t.co/rsFt0gWZFz

Guys, does anyone know the answer?