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1. The earth exerts a force of 2900 N on an orbiting communications satellite that is 40 mi above the Earth. What is the magnitude of the force the satellite will exert on the earth?

1. The earth exerts a force of 2900 N on an orbiting communications satellite that is 40 mi above the Earth. What is the magnitude of the force the satellite will exert on the earth?

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HW 5.1 (must submit work on a separate sheet of paper title HW 5.1 AND complete Google Form) 1. The earth exerts a force of 2900 N on an orbiting communications satellite that is 40 mi above the Earth. What is the magnitude of the force the satellite will exert on the earth? 2. A stone is dropped from the top of a high cliff with zero initial velocity. In which system is the net momentum zero as the stone falls freely? a. the stone and the Earth b. the stone itself C. None of these d. the stone and the person who drops it 3. When an apple falls from a tree and strikes the ground without bouncing, what happens to its momentum? a) The momentum of the apple after striking the ground is reversed. b) The speed of the apple is equal and opposite to the speed of the Earth. C) The momentum of the apple while falling is increasingly smaller. d) The momentum of the falling apple is transferred to the Earth. 4. Two 0.5 kg balls move away from each other, one traveling 3 m/s to the right, the other 4 m/s to the left. What is the magnitude of the total momentum of the system? 5. Two 1500 kg cars drive east; the first moving at 45 m/s, the second at 50 m/s. What is the magnitude of the total momentum of the system? 6. A 7.5 g bullet is stopped in a block of wood with a mass of 4.3 kg. The speed of the bullet-wood system immediately after the collision is 0.47 m/s. What was the original speed of the bullet? 7. Two carts with masses of 4.0 kg and 3.3 kg move toward each other on a frictionless track with speeds of 5.9 m/s and 4.6 m/s, respectively. The carts stick together after colliding head-on. Find their final speed.
Transcribed Image Text:HW 5.1 (must submit work on a separate sheet of paper title HW 5.1 AND complete Google Form) 1. The earth exerts a force of 2900 N on an orbiting communications satellite that is 40 mi above the Earth. What is the magnitude of the force the satellite will exert on the earth? 2. A stone is dropped from the top of a high cliff with zero initial velocity. In which system is the net momentum zero as the stone falls freely? a. the stone and the Earth b. the stone itself C. None of these d. the stone and the person who drops it 3. When an apple falls from a tree and strikes the ground without bouncing, what happens to its momentum? a) The momentum of the apple after striking the ground is reversed. b) The speed of the apple is equal and opposite to the speed of the Earth. C) The momentum of the apple while falling is increasingly smaller. d) The momentum of the falling apple is transferred to the Earth. 4. Two 0.5 kg balls move away from each other, one traveling 3 m/s to the right, the other 4 m/s to the left. What is the magnitude of the total momentum of the system? 5. Two 1500 kg cars drive east; the first moving at 45 m/s, the second at 50 m/s. What is the magnitude of the total momentum of the system? 6. A 7.5 g bullet is stopped in a block of wood with a mass of 4.3 kg. The speed of the bullet-wood system immediately after the collision is 0.47 m/s. What was the original speed of the bullet? 7. Two carts with masses of 4.0 kg and 3.3 kg move toward each other on a frictionless track with speeds of 5.9 m/s and 4.6 m/s, respectively. The carts stick together after colliding head-on. Find their final speed.
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