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A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
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Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marblesβ motions be changed? ?
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Amira pulls a 3 pound wagon 4 feet. how much work has she done?
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I have 130 liters of gas in a piston at a temperature of 250K. If I cool the gas to 163K, what will...
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