Contraction Diffuser Test section X2 Boundary layer (a) U(x) = V 8(x) BL FD (b)
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A: Radius, r = 0.548 mm = 0.548×10-3 m = 0.000548 mForce, F = 0.785 N
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Q: A mixture of water (density =1000 kg/m3) and vapor flowing with a mass rate = 7 kg/sec in a pipe of…
A: Solution:-Given thatDensity of water (ρ)=1000 kg/m3mass flow rate of mixture (m)=7 kg/sGas fraction…
Q: A basketball is pressurized to a gauge pressure of PG = 55 kPa when at the surface of a swimming…
A: Given that: PG=55 kPaPatm=101 kPa ρ = 1000 kg/m3
Q: An airplane is in level flight at low altitude, so that atmospheric pressure and densities are 1 atm…
A: Given that:Patm=1 atm=101325 Paρ=1 kg/m3Pstag=1.45×105 PaLet the speed of the airplane is v
Q: A round duct with diameters 50 cm carries air at a speed of 4 m/s. When the duct constricts to a 20…
A: Given data: The diameter d1=50 cm=0.5 m The speed V1=4 m/s The diameter d2=20 cm=0.2 m
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Q: A 0.435 kg0.435 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which…
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Q: The real pressure within a tire or other object containing pressurized stuff would be a combination…
A: Given, gauge pressure on tire = 13.55 psi = 93424 Pa Atmospheric pressure =1.01x105 Pa And Real…
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Q: A 40.0-g projectile is launched by the expansion of hot gas in an arrangement shown in Figure…
A: Given data: The mass of projectile is m=40 g=0.04 kg. The initial pressure is Pi=11x105 Pa. The…
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A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: 1. The pressure gauge shown in Figure 1 consists of a spring inside a vacuum chamber. The chamber is…
A: Let the original length of the of the spring be L Case: 1: At sea level , Pressure P=1 atm=1.015×105…
Q: A 0.504 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is…
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Q: A hot air balloon uses the principle of buoyancy to create lift. By making the air inside the…
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Q: A 0.389 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is…
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Q: The difference in mercury heights between the left tube and the right tube is h 109 mmtg 0.109 m, a…
A: height(h)=0.109m let g be acceleration due to gravity=9.8 m/s2 density of mercury(ρ)=13.6 X 103…
Q: A PROBLEMS 6.63, 6.64 6.64 This "double" nozzle discharges water (at 10°C) into the atmosphere at a…
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Q: A basketball is pressurized to a gauge pressure of PG = 55 kPa when at the surface of a swimming…
A: Gauge pressure,
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Q: A chamber is filled with a gas that has a pressure of 0.250 atm and ???is connected to a…
A: Given data Pressure in the chamber, P=0.250 atm=0.250×1.01×105 Pa
Q: An aquatic organism needs to be neutrally buoyant to stay at a constant depth. Fish accomplish this…
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A boundary layer develops along the walls of a rectangular wind tunnel. The air is at 20°C and atmospheric pressure. The boundary layer starts upstream of the contraction and grows into the test section. By the time it reaches the test section, the boundary layer is fully turbulent. The boundary layer profile and its thickness are measured at both the beginning (x = x1) and the end (x = x2) of the bottom wall of the wind tunnel test section. The test section is 1.8 m long and 0.50 m wide (into the page in Fig). The following measurements are made: ?1 = 4.2 cm ?2 = 7.7 cm V = 10.0 m/s At both locations the boundary layer profile fits better to a one-eighth-power law approximation than to the standard one-seventh-power law approximation, u/U ≅(y/?)1/8 for y ≤ ? u/U ≅ 1 for y > ? Estimate the total skin friction drag force FD acting on the bottom wall of the wind tunnel test section.
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- A simple thermometer is formed by taking a large spherical container of volume 1.13m³ and filling it with an ideal gas. Then, a U-shaped tube is attached that is very narrow so that very little fluid/gas can fit inside the tube. The tube has a small quantity of a fluid of density 1200kg/m³ placed in it. In equilibrium at room temperature - 21.9°C - the height of the fluid on both sides of the U-shaped tube are level. This is illustrated in the image below. What is the temperature of the gas in the spherical container when the left side of the fluid is 13.25cm higher than the right side of the fluid in the U-shaped tube? Atmospheric pressure is 101000Pa. °CAn aquatic organism needs to be neutrally buoyant to stay at a constant depth. Fish accomplish this with an internal swim bladder they can fill with air that they take in from the water through their gills. One complication is that the pressure in the swim bladder matches that of the surrounding water, but the water pressure changes with depth. Because the volume of a gas is inversely proportional to pressure (as you may already know if you have studied the ideal-gas law), the volume of air in a fish's swim bladder decreases with depth unless the fish actively adds more air. ▼ Part A Consider a 3.9 kg freshwater fish whose tissues have an average density of 1050 kg/m³. To what volume in mL must the swim bladder be inflated for the fish to be neutrally buoyant at the surface? Express your answer in milliliters to two significant figures. AV = Submit VD] ΑΣΦ Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining ? mLA 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger. The plastic tube has an inner radius of 6.56 mm and is frictionless. Neither the plunger nor the metal cylinder allow any air to flow around them. If the plunger is suddenly pushed upwards, increasing the pressure between the plunger and the metal cylinder by a factor of 1.35, what is the initial acceleration ? of the metal cylinder? Assume the pressure outside of the tube is 1.00 atmand that the top of the tube is open to the air.
- A cylinder containing ideal gas is sealed by a piston that is above the gas. The piston is a cylindrical object, with a weight of 22.0 N, which can slide up or down in the cylinder without friction. The inner radius of the cylinder, and the radius of the piston, is 8.00 cm. The top of the piston is exposed to the atmosphere, and the atmospheric pressure is 101.3 kPa. The cylinder has a height of 30.0 cm, and, when the temperature of the gas is 20°C, the bottom of the piston is 11.0 cm above the bottom of the cylinder. (A) Find the number of moles of ideal gas in the cylinder. (B) Heat is added, gradually raising the temperature of the gas to 160°C. Calculate the distance between the bottom of the cylinder and the bottom of the piston when the piston comes to its new equilibrium position.3 / 6 | 100% + | @ 2. A glass tube is bent into the shape shown, and filled with water. The right end of the tube is open to the air, but the left end of the tube is sealed. What is the pressure P₁ of the gas inside the sealed left end? (Note: the answer is not Patm.) BJ 0.5m 0.4m 0.3m 0.2m 0.1m Om PL ..... S ...Tire gauges for air pressure, as well as most other gauges used in an industrial environment take into account the pressure due to the atmosphere of earth. That's why your car gauge reads 0 before you put it on your tire to check your pressure. That is called gauge pressure. The real pressure within a tire or other object contains pressurized stuff would be a combination of what the gauge reads as well at the atmospheric pressure. If a gauge on a tire reads 40.16 psi, what is the real pressure in the tire in pascals. The atmospheric pressure is 1.01x10^5 Pa.
- Answer question a b and c, if possibleThe pressure in an automobile tire depends on the temperature of the air in the tire. When the air temperature is 25°C, the pressure gage reads 210 kPa. If the volume of the tire is 0.025 m³, determine the pressure rise in the tire when the air temperature in the tire rises to 44°C. Also, determine the amount of air that must be bled off to restore pressure to its original value at this temperature. kJ kPa.m³ kJ Assume the atmospheric pressure to be 100 kPa. The gas constant of air is R = 0. 287- = 0.287 kg-K The pressure rise in the tire is 210.2 kPa. The amount of air that must be bled off to restore pressure to its original value is 0.000825 kg. kPa.m³ kg.KIn the middle of a horizontally positioned closed tube is a h = 20cm long column of Hg. Each side of the tube entraps a l = 0.5 m column of air. The atmospheric pressure is H = 100 KPA. When the tube is held vertically the column of Hg slides down with d = 10cm. By how much the column of Hg slide down from the middle of the tube if one end of the horizontally positioned tube is open.
- A 0.504 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger. The plastic tube has an inner radius of 5.88 mm and is frictionless. Neither the plunger nor the metal cylinder allow any air to flow around them. If the plunger is suddenly pushed upwards, increasing the pressure between the plunger and the metal cylinder by a factor of 3.03, what is the initial acceleration a of the metal cylinder? Assume the pressure outside of the tube is 1.00 atm and that the top of the tube is open to the air.A 0.458 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger. The cylinder comes to rest some distance above the plunger. The plastic tube has an inner radius of 6.90 mm and is frictionless. Neither the plunger nor the metal cylinder allow any air to flow around them. If the plunger is suddenly pushed upwards, increasing the pressure between the plunger and the metal cylinder by a factor of 2.07, what is the initial acceleration a of the metal cylinder? Assume the pressure outside of the tube is 1.00 atm and that the top of the tube is open to the air. a = m/s?