In hydroelectric power plant, water at 20 Celcius. is supplied to turbine at a rate of 0.6m^3/s through 200m long .35m-diameter cast iron pipe. the elevation diffrence between the free surfaceof the reservoir and turbine discharge is 140m, and the combine turbine-generator efficiency 80 percent. Disregarding the minor losses because large length-to-diameter ratio, determine the electric power output of this plant.