molinanadia04 molinanadia04

28-09-2020
Engineering

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A 75-kg piano is hosted on a crane and delivered throughout the window of a 6th story apartment (20 meters above ground). What is the potential energy of the piano?

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sqdancefan sqdancefan

29-09-2020

Answer:

14,700 J

Explanation:

PE = Mgh = (75 kg)(9.8 m/s²)(20 m) = 14,700 J

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