fluid mechanics

Water at 40C is pumped from an open tank through 200m of 50 -mm-diameter smooth horizontal pipe as shown in Figure below and discharges into the atmosphere with a velocity of 3m/s. Minor losses are negligible. Also, assume standard atmospheric pressure =101kPa, specific weight =9.731103N/m3, water vapour pressure at 40C= 7.376101N/m2 and kinematic viscosity, v=6.580107m1/s. (a) If the efficiency of the pump is 70%, how much power is being supplied to the pump? (8 marks) (b) What is the NPSHn at the pump inlet? Neglect losses in the short section of pipe: connecting the pump to the tank