A 0.9 efficient Francis turbine produces 200 MW with a speed of 150 rpm. The blade height is 1.0 m, and the inlet radius of the rotor is 7.0 m. The flow exits the turbine in a radial direction. (a) If the angle between the radial direction and the absolute velocity at the inlet is 30o, determine the volumetric flow rate. (b) What is the change in head across the turbine?