Crane l uses 10 kJ of energy to lift a 50 kg box to the roof of

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Crane l uses 10 kJ of energy to lift a 50 kg box to the roof of a building. Crane 2 uses 20 kl to lift a 100 kg box the same distance. Which crane is more efficient?

A. Crane 1

B. Crane 2

C. Both cranes have the same efficiency.

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College Physics A Strategic Approach

ISBN: 9780321907240

3rd Edition

Authors: Randall D. Knight, Brian Jones, Stuart Field

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Question Posted: Mar 29, 2024 11:00 PM

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Crane l uses 10 kJ of energy to lift a 50 kg box to the roof of

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C In each case what you get is the potentialenergy change of the box Crane 2 ...View the full answer

College Physics A Strategic Approach

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