8. In Scenario I, two air carts have the same mass and are moving in the same direction at the same speed. In Scenario 11, two air carts have the same mass and are moving in the opposite direction at the same speed. The masses and speeds in Scenario I and Il may not be the same. Considering the two air carts in each Scenario to be a system. which of the following statements must be true. A) The magnitude of the total momentum in Scenario I is larger than the magnitude of the total momentum of Scenario II. B) The magnitude of the total momentum in Scenario I is smaller than the magnitude of the total momentum of Scenario 1]. C) The magnitudes of the total momentum in Scenario I is the same as the magnitude of the total momentum of Scenario II. D) One would need the mass and velocities to determine which of the statements above are true. 9. A satellite is orbiting Earth with a period of 16 hours. What is its distance from the center of the Earth? (Earth has a radius of 6400 km and a mass of 6.0 x 1024 kg) A) 6400 km B) 9200 km C) 13000 km D) 25000 km E) 32000 km 12. A bowling ball with a mass of 5.0 kg and a radius of 0.10 m is rolling without slipping at a speed of 4.0 mfs. What is its total kinetic energy? A) 16] B) 321 C) 40.] D) 561 E) 80J 15. A baseball with a mass of 0.25 kg is thrown by a pitcher and is traveling at 60 m/s when it is hit by a bat with a mass of 1.0 kg. The ball travels directly back to the pitcher at a speed of 80 m/s. What is the magnitude of the impulse given to the ball by the bat? A) 0kg-m/s B) 5kg-m/s C) 20 kg-m/s D) 35 kg-m/s E) l75kg-n1/s 16. The same torque is applied to two different objects. about their axes of rotation. I Object A: A disk of mass M and radius R. with its axis of rotation through the center. perpendicular to the plane of the disk I Object B: A disk of mass M and radius R, with a point mass of mass EM, attached to the outer rim. The axis of rotation is also Ihrough the center of the disk. perpendicular to the plane of the disk. Object A Object 8 Point mass ( attached to rlm How does the magnitude of the angular acceleration ofthe 2 objects compare? A) A >a3 B) a. >a, C) A :01; 1?. Object A is traveling East at 4.0 mls when it collides with a stationary object B with the same mass. Aer the collision, object A is moving North with a speed of 3.0 mls. What is the nal speed of object B? A) 1.0 min.- B) 3.0 m/s C) 4.0 m/s D) 5.0 mis E} 7.0 m/s