When the hydrofoil shown was tested, the minimum pressure on the surface of the foil was...
When the hydrofoil shown was tested, the minimum pressure on the surface of the foil was found to be 75 kPa absolute when the foil was submerged 1.8 m and towed at a speed of 6 m/s. At the same depth, at what speed will cavitation first occur? Assume irrotational flow for both cases and T = 10 °C. (a) What is the absolute value of the minimum pressure when cavitation occurs? Pcay = kPa (b) What is the value...
When the hydrofoil shown was tested, the minimum pressure on the surface of the foil was found to be 80 kPa absolute when the foil was submerged 1.9 m and towed at a speed of 7 m/s. At the same depth, at what speed will cavitation first occur? Assume irrotational flow for both cases and T = 10 °C. Water = 10°C (50°F) (a) What is the absolute pressure of the atmosphere? kPa (b) What is the specific weight of...
When the hydrofoil shown was tested, the minimum pressure on the surface of the foil was found to be 75 kPa absolute when the foil was submerged 1.8 m and towed at a speed of 6 m/s. At the same depth, at what speed will cavitation first occur? Assume irrotational flow for both cases and T = 10 °C. Water = 10°C (50°F) (a) What is the absolute pressure of the atmosphere? kPa (b) What is the specific weight of...
9. The absolute pressure in water at a depth of 5 m is 145 kPa. What is the absolute pressure in a liquid whose specific gravity is 1.34 at the same depth? Hint: Determine the atmaspheric pressure first 10. Water is pumped from a lake to a storage tank 30 m above at a rate of 55 L/s, while consuming 22.6 kW of electrie power to run the motor. Detemine the overall efficiency of the motor-pump unit. .A hydraulic power...
part a-f needed S U RES DE SE U TENHAM - Due Date: 11/20/2019 11:59:00 PM End Date: 112019 11:39:00 PM (5%) Problem 10: A basketball is pressurized to a gauge pressure of P 75 kPa when at the surface of a swimming pool. (Patm = 101 kPa). The ball is then submerged in the pool of water which has a density Q = 1000 kg/m². Assume the ball does not change in mass, temperature, or volume as it is...
For the following questions, use the equation below for the water pressure as a function of depth: P = (9800 Pa/m)*d + 101,300 Pa PART A: A cube of plastic that has dimensions of 1.8 m x 1.8 m x 1.8 m, is submerged in a tank of water such that the top surface of the cube is 1.8 m below the surface of the water. First, let's determine the water pressure acting on the top and bottom of the...
Suppose that the hatch on the side of a Mars lander is built and tested on Earth so that the internal pressure just balances the external pressure. The hatch is a disk 50.0 cm in diameter. When the lander goes to Mars, where the external pressure is 650 N/m^2, what will be the net force (in newtowns and pounds) on the hatch, assuming that the internal pressure is the same in both cases? Will it be an inward or outward...
ÃI = A atmospheric pressure C gauge pressure N/m e. absolute pressure 23. When atmospheric pressure increases, what happens to the absolute pressure at the bottom of a pool? a. It does not change. b. It increases by a greater amount. c. It increases by a lesser amount. d. It increases by the same amount. e. It depends on the depth of the pool. 24. A 500-N weight sits on the small piston of a hydraulic machine. The small piston...
Problem 7. (1 point) When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV 14 = C where C is a constant. Suppose that at a certain instant the volume is 340 cm, and the pressure is 97 kPa (kPa = kiloPascals) and is decreasing at a rate of 15 kPa/minute. At what rate is the volume increasing at this instant? The volume is increasing at cm/min Problem 5....
7. A highway curve with a radius of R metres is banked so that cars moving at v m/s around the curve do not have to rely on friction when taking the turn. IWPS 7. No.4] 7.1 Show (from first principles) that the angle, 6, at which, the road should be banked is given by: 0 arctan 7.2 A particular banked highway curve with a radius of 200 m is designed for traffic moving at 60 km/h. On a rainy...