The head loss in 200 ft of 6 in diameter pipe is known to be 25 ft.lb/lb when oil (s = 0.90) of
viscosity 0.0008 lb.sec/ft2
flows at 2.0 cfs. Determine the centerline velocity, the shear stress
at the wall of the pipe, and the velocity at 2 in from the centerline.
draw figure also.