1. The problem statement, all variables and given/known data Inlet Average Velocity at Inlet = 2.50 m/s Pressure Abs. = 100 Kpa Elev = 2.00 m Inlet tube diameter 12.0 cm Water density 997 kg/m^3 Outlet Average velocity at outlet = 8.00 m/s Elevation = 2.00m a.) Calculate mass flow rate through the pump b.) w/ an outlet pressure of 300 kPA what is required rate of shaft work input has 85% efficiency? 2. Relevant equations m'=pVA 3. The attempt at a solution My attempt was to just average the two Ave. velocities and plug into mass flow equation, not correct as I got no points on the HW. Part b.) I could not complete I would think it would involve calculating the change in mechanical, potential, and flow work and then multiplying kW by efficiency super frustrated. please help!