The manometer shown in the figure below, uses mercury as its fluid. If atmospheric pressure is 100 kPa, what is the pressure of the gas in the container shown on the left?
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The manometer shown in the figure below, uses mercury as its fluid. If atmospheric pressure is 100 kPa, what is the pressure of the gas in the container shown on the left?
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- A pitot tube (the figure) is used to determine the airspeed of an airplane. It consists of an outer tube with a number of small holes B (four are shown) that allow air into the tube; that tube is connected to one arm of a U-tube. The other arm of the U-tube is connected to hole A at the front end of the device, which points in the direction the plane is headed. At A the air becomes stagnant so that và = 0. At B, however, the speed of the air presumably equals the airspeed B of the plane. A pitot tube on a high-altitude aircraft measures a differential pressure of 240 Pa. What is the aircraft's airspeed if the density of the air is 0.0330 kg/m³? Number Pair- Hole A B B Units Liquid Air hAnswer parts D-F pleasePlease solve and answer the question correctly please. Thank you!!
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- Solve the problems below. 1. A wind blows at the speec. of 30 m/s across a 175 m2 flat roof of a house. (a) Whar is the pressure difference between the inside of the house and the outside of the house just above the roof? (Assume that the air pressure inside the house is atmospheric pressure.) (b) Whar is the force on the roof due to the pressure difference? 2. Water e:nters a house frorm a ground pipe with an inside dianmeter of 0.02 m at an absolute pressure of 4.0 x 105 Pa. A pipe that is 0.01 m in diameter leads to the second-floor bathroom 5.0m above the ground floor. The flow speed ar the ground pipe :s 1.5 m/s. Find the following: (a) flow speed on the second floor; and (b) pressure. 3. Water flows at a rate of 800 cm3/min in a pipe of varying cross-sectional areas. Calculate the veloc.ty of the water at the section where: (a) the radius is 3.0 cm; and (b) the radius is 5.0 cm 2021/3/20 21:08Imagine two blocks as shown in Figure 10A-1. The two blocks, with the same size bases, are resting on the horizontal surface of a table. Each block pushes down on the underlying surface with a force (weight) that is ______ the downward force exerted by the other block.a.different fromb.equal toc.twice By definition, pressure is the amount of force acting on an area of surface. Pressure is calculated by dividing the force exerted on a surface by the area over which the force is applied. The blocks weigh the same and their bases have the same area, so the two blocks exert ______ pressure on the underlying surface.a.half theb.the samec.twice theA kayak is at rest on the surface of the lake. The kayak has a mass of 9.6 kg and a volume of 31 liters. The lake has a density of 1 kg per liter. What is the buoyant force on the kayak in Newtons?