A centrifugal pump delivers 4000 gal/min of water at 20°C with a shaft rotating at 1750 rpm. Neglect losses. If r1 = 6 in, r2 = 14 in, b1 = b2 = 1.75 in, Vt1 = 10 ft/s, and Vt2 = 110 ft/s, compute the absolute velocities (a) V1 and (b) V2, and (c) the ideal horsepower required.