11. Reservoir-Pump System. Water (=1.94slug/ft3; =2.34105psfs ) is pumped from one large, open tank to a second large, open tank at a rate of 1600 gpm (gallon per minute). The water level (free surface) of the second tank is 10ft higher than that of the first tank. Pipe characteristics: 6-in diameter, 200-ft length, and 0.001 relative roughness. Minor loss coefficients are 0.5 (entrance), 1.0 (exit), and 1.5 (one elbow). Determine: (a) head loss of the system; and (b) pump power ( 84% efficiency) required. [ 1 gallon = 77/576ft3;1hp=550ftlbf/s;g=32.2ft/s2.] Ans. (a) 56.3ft; (b) 32hp