A pipe 10 inches in diameter and 60 ft long is fixed in a vertical position, as shown in Figure P5.22. The pressure head at its upper end is 20.0 fi: and the water flows at a velocity of 10 ft/s. The...

A pipe 10 inches in diameter and 60 ft long is fixed in a vertical position, as shown in Figure P5.22. The pressure head at its upper end is 20.0 fi: and the water flows at a velocity of 10 ft/s. The total friction loss in the pipe is 3 ft. Determine the pressure head at the lower end of the pipe when the direction of flow is (a) downward and (6) upward.