Adam 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?

p. e= pgh =1000×9.8×19.6=192080 j

electrical energy =.85×p.e=163268 J

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i just did this and got a 100.

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.