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SMDEP Physics Conservation of Linear Momentum

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Ch 9, #6: what is the mass? 1. 43.1 kg 2.97.2 kg 3.4200 kg 4.903.7 kg 5.Other 6.Didnt finish

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Ch 9, #13: what is the magnitude of the velocity? 1.0.67 m/s 2.0.92 m/s 3.7.31 m/s 4.63.8 m/s 5.Other 6.Didnt finish

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Ch 9, #23: what is the average force? 1.65 N 2.130 N 3.12.9 N 4.1700 N 5.Other 6.Didnt finish

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Ch 9, #36: what is the mass? 1.0.28 kg 2.0.67 kg 3.1.36 kg 4.0.84 kg 5.Other 6.Didnt finish

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Attendance: Where would you prefer to have a home? 1.Beach 2.Woods 3.Desert 4.City 5.Suburbs 6.Artificial Gravity Spacestation

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Consider these three situations: (i) a ball moving at speed v is brought to rest (ii) a ball is accelerated from rest to speed v (iii) a ball moving at speed v is brought to rest and then accelerated to speed –v in the opposite direction For which of these cases is the change in momentum the largest? 1.(i) 2.(i) and (ii) 3.(ii) 4.(iii) 5.(ii) and (iii)

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Suppose rain falls vertically into an open cart rolling along a horizontal, frictionless track. As a result of the accumulating water, the speed of the cart: 1.Increases 2.Decreases 3.Remains the same

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Suppose rain falls vertically into an open cart rolling along a horizontal, frictionless track. As a result of the accumulating water, the kinetic energy of the cart: 0 of 5 :10 1.Increases 2.Decreases 3.Remains the same

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A car accelerates from rest. In doing so, the absolute value of the cars momentum changes by a certain amount. The momentum of the Earth changes by: 0 of 5 :10 1.A larger amount 2.The same amount 3.A smaller amount 4.Depends on the interaction between the two

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A car accelerates from rest. In doing so, it gains a certain amount of kinetic energy. The Earth: 0 of 5 :10 1.Gains less kinetic energy than the car 2.Gains the same amount of kinetic energy as the car 3.Gains more kinetic energy than the car 4.Loses kinetic energy as the car gains it

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Consider two carts, of masses m and 2m, at rest on an air track. If you push one cart for t=3s and then the other for the same time (3s), exerting equal force on each, the momentum of the light cart is: 0 of 5 :10...that of the heavier cart 1.Larger than 2.Equal to 3.Smaller than

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Consider two carts, of masses m and 2m, at rest on an air track. If you push one cart for t=3s and then the other for the same time (3s), exerting equal force on each, the kinetic energy of the light cart is: 0 of 5 :10...that of the heavier cart 1.Larger than 2.Equal to 3.Smaller than

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2. The two carts are identical. 3. Cart B is hollow.

2. The two carts are identical. 3. Cart B is hollow.

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