A submarine moves forwards and has its axis 15 m below the surface of water. A pitot tube properly placed just in front of submarine and along its axis is connected to U-tube manometer. The difference in mercury levels of manometer is 170 mm. Determine the speed of the submarine. Take specific gravity of sea water = 1.026

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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?