A cylindrical tank of water is being emptied through a pipe at the bottom, as shown in Figure 6. The velocity distribution out of the pipe is u U (1-),where r is the radial distance from the center of the venting pipe, D 5cm is the diameter of the pipe. Uo is given as U 2g h, where h is the height of the water surface above the tank's bottom. The diameter of the tank is m, and the initial height of the water in the tank is 2m. Find the time required to empty the tank. g is the gravitational acceleration 2 Im in diameter h pipe 5cm in diameter Figure 6