A desktop computer is to be cooled by a fan whose flow rate is 0.34 m3/min. Determine the mass flow rate of air through the fan at an elevation of 3400 m where the air density is 0.7 kg/m3. Also, if the average velocity of air is not to exceed 110 m/min, determine the diameter of the casing of the fan.

Q: Consider an airfoil in a flow at standard sea level conditions with a freestream velocity of 50 m/s.…

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Q: What is the absolute pressure at the bottom of a fresh-water lake at a depth of 32.0 m? Assume the…

A: The absolute pressure at the bottom of fresh water lake can be given by P=P0+ρgh

Q: Water at four-degree Celsius flows through a pipe that has a conical shape and is sloping downward;…

A: The equation of continuity is A1v1=A2v2…

Q: A mercury barometer reads 747.0 mm on the roof of a building and 760.0 mm on the ground. Assuming a…

A: Given:Reading of mercury barometer at the top of the building = 747 mm og HgReading of mercury at…

Q: In an arrangement (as suggested in the picture) of intravenous feeding of nutrient solution, density…

A: Given: Density of solution ρ=1040 kg/m3, Gauge pressure of venous blood P=132 mm Hg, Atmospheric…

Q: The top of a vertical cylinder is sealed with a circular lid. If the cylinder is evacuated, what is…

A: The radius of the cylinder, r=6.5 cm=0.065 m   The pressure, P=1.01×105 Pa

Q: Air within the funnel of a large tornado may have a pressure of only 0.42 atm. What is the…

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Q: A low-speed subsonic wind tunnel has a nozzle an inlet area which is 15 times the throat area. A…

A: Velocity at the test section is given by v=2P1-P2ρ1-A2A12…

Q: A square plate with edge length 9.10 cm and mass 488 g is hinged along one side. If air is blown…

A: According to the Bernoulli's theorem,  P +12ρv2 +ρ g h = constant  where, P is the pressure, h is…

Q: An opening of area 0.280 cm2 in an otherwise closed beverage keg is 40.5 cm below the level of the…

A: Given: The area of opening is 0.280 cm2. The depth of opening is 40.5 cm. The density of the liquid…

Q: One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated…

A: Given Data: The sealed house inside air pressure is: pi=1.02 atm=1.03×105 Pa The external air…

Q: the top of a vertical cylinder is sealed with a circular lid. If the cylinder is evacuated, what is…

A: The force is given by, F=PAF=Pπr2

Q: Helium gas with a gauge pressure of 58 kPa is stored within a cube that has 45 cm long sides.…

A: Given data: P = 58 kPa L= 45 cm Need to determine the net force on the side of the cube.

Q: How much work is done by pressure in forcing 1.4 m3 of water through a pipe having an internal…

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Q: A certain rigid aluminum container contains a liquid at a gauge pressure equal to P0 = 2.02 × 105 Pa…

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Q: Air at 35°C, 1atm (p = 1.145kg/m³, µ = 1.895 × 10-kg/m. s) enters a 11-m-long section of a…

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Q: BP-11 A tank of water has a spout located 13.5 cm below the water line. The tank is sealed and the…

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Q: A fish tank has dimensions 38 cmcm wide by 1.0 mm long by 0.50 mm high.If the filter should process…

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Q: A solid brass sphere is initially surrounded by air, and the air pressure exerted on it is 1.0 × 105…

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Q: If the density of air is 1.3 kg/m3. What is the mass of air in an 8m×5m×4m room? a. 208 kg b. 210…

A: Given:Density of air = 1.3 kg/m3 Room dimension = 8m×5m×4m

Q: Consider the flow of air through a convergent duct. The inlet, throat areas are 3 and 1.3 m^2,…

A: The given data are listed below with appropriate variables. Here, A1 denotes the inlet area, A2…

Q: Water flows through a fire hose of diameter 6.35 cm at a rate of 0.012 m3/s. The fire hose ends in a…

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Q: An intravenous (IV) system is supplying saline solution to a patient at the rate of 0.120 cm3 /s…

A: It is given that, P1=8 mm Hg =1.066×103 N/m2η=1×10-3 N.s/m2l=2.50×10-2 mr=0.150×10-3 mQ=1.20×10-7…

Q: What is the total downward force on the surface of the 4.0x5.O meter floor due to air pressure of…

A: Given data: Floor dimension is, 4.0 m×5.0 m. Air pressure is, P=1.00 atm=1.01325×105 N/m2.

Q: QUESTION 1 Calculate the volume (in m^3) of helium needed in a hot air balloon to lift at least 100…

A: Analyze the free body diagram of the given system. Here, FB, W1 and W2 represent the buoyant force,…

Q: A jet airplane in level flight has a mass of 8.60 x 104 kg, and the two wings have an estimated…

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Q: In the central heating design of a house, if the speed of pumping hot water to the ground floor is…

A: Given data: The velocity of water is v1 = 0.5 m/s. The diameter of pipe is d1 = 4 cm. Pressure…

Q: A thread of mercury of length 15cm is used to trap some air in a capillary tube with a uniform cross…

A: Given data: Length of mercury column = 15 cm The length of the trapped air column = 20cm Need to…

Q: A teenager in a large pool at a certain depth D, equipped with a full scuba gear, takes enough air…

A: Given  Pressure difference ∆P = 8.7 kPa  = 8700 Pa  Water density(ρw) = 1000 kg/m3   Let depth is…

Q: A symmetric U-tube is open to the atmosphere at both ends. Water, with a density of 1.00 x 10° kg/m,…

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Q: Air and oil with a temperature of 25 °C are flowing through a horizontal pipe with an inner diameter…

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Q: The wing of an airplane has an average cross-sectional area of 13 m3 and experiences a lift force of…

A: Given : A = 13 m2 F = 89000 N

Q: Through a 19 cm diameter underground pipe, water circulates at a speed of 8.2 cm / s. Determine:…

A: Given data: Diameter of underground pipe is, d1=19 cm. Speed of water circulation through…

Q: An office window has dimensions 3.4 m by 2.1 m. As a result of the passage of a storm, the outside…

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Q: At what flow rate (in m3/s) might turbulence begin to develop in a water main with a 0.300 m…

A: Given data The diameter of the main pipe is: d = 0.3 m   The expression for the Reynolds number is…

Q: A symmetric U-tube is open to the atmosphere at both ends. Water with a density 1x10^3 kg/m^3 is…

A: Given data: The density of water is ρ=1×103 kg/m3. The density of liquid is ρl=8.5×102 kg/m3. The…

Q: A typical hot air balloon can carry 3–5 passengers in a wicker basket and has a total mass of  m =…

A:

Q: The air velocity in the duct of a heating system is to be measured by a Pitot-static probe inserted…

A: a) The figure,

Q: Water enters a pipe with a diameter of 2.0 cm at a speed of 15.0 m/s. • At what velocity will it…

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Q: Suppose you spray your sister with water from a garden hose. The water is supplied to the hose at a…

A: Given data: Rate of supplied water, Q=0.529×10-3 m3/s diameter of the nozzle, d=5.67×10-3 m From…

Q: The pressure on the suction side of pumps is typically low, and the surfaces on that side of the…

A: Given : Pressure on the suction side of the water pump is P = 0.95 psia = 6550 N/m2.

Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.