College Physics
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ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:A hydroelectric power facility converts the gravitational potential energy of water behind a dam to electric energy. (For each answer, enter a number.)
(a) What is the gravitational potential energy (in J) relative to the generators of a lake of volume 75.0 km³ (mass = 7.50 x 10¹3 kg), given that the lake has an average height of 48.0 m above the generators?
J
(b) Compare this with the energy stored in a 9-megaton fusion bomb.
Elake Ebomb
=
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