Question

Water is pumped at 120m^3/min from a lake into a tank 35 m above the lake.
(a) What power, in kW, must be delivered by the pump? (b) What is the increase in potential energy of the water each minute?
(120m^3/min) * (1000kg/m^3 * 9.8) * 35m * (1min/60s) = ? W

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