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- 5. The Hoover Dam, in Arizona, encloses Lake Mead, which contains 10 trillion gallons of water. The dam is 1200 ft wide and the lake is 500 ft deep. (a) Estimate the hydrostatic force on the dam, in MN. (b) Explain how you might analyze the stress in the dam due to this hydrostatic force?Pc = 40, Pif = -2, πc = 20, πif = 4. (P = hydrostatic pressure, π – oncotic pressure, c – capillary, if – interstitial fluid). Calculate the direction and magnitude of the Starling forcesIn Fig. both fluids are at 20 ° C. If surface tensioneffects are negligible, what is the density of the oil,in kg/m 3 ?
- A vertical glass tube has an inside diameter of 1 mm. When pressure is applied, a column of water at 20 ° C rises through it to a height of 25 cm. Estimate the applied pressure in pascals, once the effect of surface tension has been corrected. A 2 m tall barrel is closed on top except for a thin pipe extending 8 m up from the top. When the barrel is filled with water up to the base of the pipe (2 m deep), the water pressure on the bottom of the barrel is 20 KPa. What is the pressure on the bottom when water is added to fill the pipe to its top?For the fluid power automobile lift system of Fig. 1, the hydraulic piston has a 250-mm diameter. How much of oil pressure (kPa) is required to lift a 13300 N automobile?
- A closed cylindrical vessel, 2m in diameter & 4m high is fully filled with water & rotated to its vertical axis at a constant speed of 12.2 rad/sec. The top is pressurized by 180 KPa. (a) What is the pressure at the center bottom of the cylinder? (b) What is the pressure at the circumference bottom of the cylinder? (c) What is the total hydrostatic force at the sides of the cylinder?example 1.A 30-m long dam retains 9m of water as shown in the figure. Find the total resultant force acting on the dam and the location of the center of pressure.Find surface tension in a soap bubble of 40 mm diameter when the inside pressure is 2.202 N/m2 above atmosphere. The surface tension of the soap bubble (unit is N/m) = _____________
- Fluid mechanics If the hydrostatic pressure at the bottom of the cylindrical tank is 14.715 kPa, specific gravity of the tank is 0.15, and the weight of the tank is 25 kN, find the pressure at the bottom of the tank if the tank has to be lain sideways?From fig, if the pressure of gas in bulb A is 50cm Hg vaccum and atmosphere pressure =76 cm hg, find height of column HThe system in Fig. is open to 1 atm on the rightside. ( a ) If L = 120 cm, what is the air pressure in containerA ? ( b ) Conversely, if p A = 135 kPa, what is thelength L ?