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posted by Bret on Sunday, February 19, 2012 at 10:48am.
How much power does a water pump exert lifting 30 kg of water at a constant velocity 20 m each second
F = m*g = 30kg * 9.8N/kg = 294 N. P=F*V = 294 * 20=5880 Joules/s=5880 Watts.
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