Approximately 5.5 $ 106 kg of water falls 50 m over
Chapter , Problem 125(choose chapter or problem)
Approximately 5.5 $ 106 kg of water falls 50 m over Niagara Falls each second. (a) What is the decrease in the gravitational potential energy of the waterEarth system each second? (b) If all this energy could be converted to electrical energy (it cannot be), at what rate would electrical energy be supplied? (The mass of 1 m3 of water is 1000 kg.) (c) If the electrical energy were sold at 1 cent/kW h, what would be the yearly income?
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