An elevator car has a mass of 750 kg, and its three passengers have a combined mass of 135 kg. If the elevator and its passengers ride to the ground floor, 20.7 m below, find the change in gravitational potential energy of the car and its passengers. Show all your work.
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An elevator car has a mass of 750 kg, and its three passengers have a combined mass of 135 kg. If th...
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