30 ton Water 4 m

Determine the mass of weight necessary to increase the pressure of the liquid trapped inside a piston-cylinder device to 127 kPa.Assume the piston to be weightless with an area of 0.10 m2.The outside pressure to be 100 kPa and g=9.81 m/s2.

The flow of water from a container is controlled by a 5-ft-wide L-shaped gate hinged at point A, as shown in the figure. If it is desired that the gate open when the height of the water is 10 ft, determine the weight W of the counterweight to achieve this. Take d= 5 ft and H = 16 ft. Give your answer in lb and without decimals.

A vat contains a mixture of oil and water. The water forms a lower layer which is 0.8 m deep, and above it there is an oil layer 0.3 m thick. The density of water is 1000 kg/m³, and the density of oil is 800 kg/m³. Find the force on a flat door at the bottom of the vessel that has a cross-sectional area of 0.5 m². The acceleration due to gravity is 9.81 m/s². Oil, P. = 800 kg/m³ h, = 0.3 m %D Water, pw= 1000 kg/m3 h, = 0.8 m A = 0.5 m² O a. 5.1 kN O b. 5.4 kN Ос. 1.28 kN O d. 4.32 kN е. 10.2 kN

A very large cyndrical shaped tank has a radius of 4 feet and a height of 15 feet. The tank is filled with chocolate milkshake to a depth of 11 feet. The weight density of the milkshake is 48 pounds per cubic foot. Find the work required to pump the milkshake to the top of the tank.