A closed cylindrical vessel is filled with water 3/4 of its height. The height is 4 meters and the diameter is 2 meters. The remaining 1/4 is filled with air, the pressure which is 100 kPa. If the closed cylindrical vessel is rotated at 152 revolutions per minute, determine the maximum and minimum inside pressure at the base. (Ans. minimum= 100 kPa, maximum 215 kPa)

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Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?