Water at 20-C flows from a reservoir out a 100-m-long, 4-cm-diameter galvanized iron pipe to the atmosphere. The outlet is 20 m below the surface of the reservoir. What is the exit velocity
(a) assuming no losses in the pipe and
(b) including the losses? There is a square-edged entrance.
Sketch the EGL and the HGL for both (a) and (b).