A cylindrical tank with a large diameter is filled with water to a depth D = 0.310 m. A hole of cross-sectional area A = 7.51 cm2 in the bottom of the tank allows water to drain out.
(a) What is the rate at which water flows out, in cubic meters per second?
(b) At what distance below the bottom of the tank is the cross-sectional area of the stream equal to one-half the area of the hole?