A container holds an oil layer of 0.3 m (SG = 0.9) above a 1.2 m layer of seawater (SG = 1.03). What is the gage pressure at the bottom of the container (Pg in kPa)? (use specific weight of water = 9.79 kN/m3 )

A closed tank contains 0.5 m thick layer of mercury (specific gravity = 13.6) at the bottom. A 2.0 m thick layer of water lies above the mercury layer. A 3.0 m thick layer of oil (specific gravity = 0.6) lies above the water layer. The space above the oil layer contains air under pressure. The gauge pressure at the bottom of the tank is 196.2 kN/ m². The density of water is 1000 kg/m³ and the acceleration due to gravity is 9.81 m/s². The value of pressure in the air space is

Glycerin at 20 °C flows upward in a vertical 75-mm-diameter pipe with a centerline velocity of 3.8 m/s. Determine the (a) head loss and (b) pressure drop in a 10-m length of the pipe.

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