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A piston engine raises 200 liters of water in a wall from a depth of 7m in 6 seconds. find the power of the engine .the density of water is 1000kg/m3?
1 answer
power = work/time = force*distance/time
(200L * 1kg/L * 9.81 N/kg) * 7m / 6s = ____ W
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