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Water in a reservoir at 20oC enters into a 5 cm diameter horizontal cast iron pipe through a sharp- edged entrance

(loss coefficient, K = 0.5) at a flow rate of 0.24 m3/min. The water then flows through a turbine and a wide-open globe valve before discharging into the atmosphere. The water level in the reservoir is 40 m above the pipe entrance, and the total length of pipe is 125 m. Determine the power extracted by the turbine.

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