Water flows into a tank and out through another pipe, as shown in the figure below. The water in the tank has a surface area, Asur f 5.6 m². At the bottom of the tank there is a door inclined at an angle 0 = 25 degrees with respect to the horizontal. The door has a length L = 1.1 m and a width w =1 m (out of the page). The flowrate into the tank is Q; (t) = 0.26 m³/s and the flowrate out is Qo(t) = 0.05 m³/s At time t = 0, the water has a depth ho = 2.5 m. The density of water is p = 1000 kg/m³.

8. In the figure below a manometer uses oil with specific gravity of 0.8. (a) Calculate the discharge when R = 1 ft. (b) Repeat the problem if the pipe is inclined at 30° upward. oil R 6" 3" -- 6"

Water is stored in a tank sketched in the figure below to support the demand of a nearby community area.The system is designed so that pressure at the location B always lies in the range of 330 to 440 kPa (gauge).Water demand fluctuates between 0.3 and 1 m3/s regardless of pressure at B. The supply pipe of 600 mmdiameter and 1 km length between A and B is made of steel and has the equivalent sand roughness of 1 mm.Although not shown in the figure, the supply pipe has five 90◦ bends, each having the head loss coefficientof 0.8. The figure shows that the bottom end of the tank is located 42 m above the ground, and the pipe isburied 1.5 m below the ground. A pump system regulates so that the tank keeps the same water level all thetime. Assume water at 20◦C, and air in the storage tank has the atmospheric pressure. To meet the designcriterion for pressure at B, what should be the depth of water h in the storage tank?