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13 March, 05:02

A dam is used to block the passage of a river and to generate electricity. Approximately of water fall each second through a height of 19.6 m. If 85 % of the gravitational potential energy of the water were converted to electrical energy, how much power would be generated?

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  1. 13 March, 07:08
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    p. e = pgh = 1000*9.8*19.6=192080 j

    electrical energy =.85*p. e=163268 J
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