A flat-bottomed barge, 80 ft long and 35 ft wide, submerged to a depth of 5 ft, is to be pushed up a river (the river water is at 60F). Estimate and plot the power required to overcome skin friction...

A flat-bottomed barge, 80 ft long and 35 ft wide, submerged to a depth of 5 ft, is to be pushed up a river (the river

water is at 60F). Estimate and plot the power required to

overcome skin friction for speeds ranging up to 15 mph.

Repeat Problem 9.46, except that the water flow is now

at 30 ft/s. (Use formulas for CD from Section 9.7.)