In the carburetor of an aircraft or automobile engine, air flows through a relatively small aperture and then expands. In cool, foggy weather, ice sometimes forms in this aperture even though the outside air temperature is above freezing. Why?

Q: Air is pushed steadily through a forced-air furnace pipe at a steady speed of 4.0 m/s. The pipe…

A: Given data:  Speed at wider portion (V1) = 4.0 m/s Measurement of pipe at wider portion = 56 cm × 22…

Q: Why is it impossible to remove a filter paper from a funnel by blowing into narrow end of the…

A: It is impossible to remove a filter paper from funnel by blowing into narrow end of the funnel…

Q: A block of steel (s.g.=7.85) will "float" at a mercury water interference as in Fig. 6-19. What will…

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Q: Why mercury collects itself into drops when placed on a clean glass plate?

A: Cohesion is the property of like molecules to stick to each other due to mutual attraction. Adhesion…

Q: Why is flow separation in flow over cylinders delayed when the boundary layer is turbulent?

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Q: Why is it that an aneroid barometer is able to measure altitude as well as atmospheric pressure?

A: The aneroid barometer is a small mechanical device that helps in order to measure the atmospheric…

Q: If a glass beaker filled to the brim with liquid mercury is heated, the mercury overflows because…

A: Let a glass beaker has a volume = V The mercury is filled to the brim in the glass beaker, thus the…

Q: An immersed body is always buoyed up by a force equal to the weight of the body. False True

A: Given that ,                 the body is immersed in a fluid or liquid

Q: A water tank open to the atmosphere at the top has two small holes punched in its side, one above…

A: It is given that,

Q: Consider the flow of air and water in pipes of the same diameter, at the same temperature, and at…

A: Given:  air and water

Q: 7. A large container, 128 cm deep is filled with water. If a small hole is punched in its side 81.0…

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Q: Give the expression for the excess pressure in an air bubble inside the liquid?

A: The excess pressure inside the liquid a layer of the liquid in terms of surface tension is, P=2TR…

Q: 2.49 Which of the following is the formula for the gage pressure within a very small spherical…

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Q: The diameter of one arm of a U-tube is 5 mm while the other arm is large. If the U-tube contains…

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Q: Why do you suppose that airplane windows are smaller than bus windows?

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Q: glass is filled with water to a height of 12 cm. How much pressure does the water extert on the…

A: Given Data : The height of the water in the glass is given as h = 12 cm.

Q: Rank the volume of air in the glass, from greatest to least, when it is held a. near the surface as…

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Q: A cylindrical glass tank with a diameter of 8.6 cm and a height of 25 cm is inverted and inserted…

A: Given information: The diameter of the glass tank (d) = 8.6 cm = 0.086 m The height of the glass…

Q: An open container is filled with water up to a depth of 3 meters and above water it is filled with…

A:

Q: The lower end of a capillary tube of diameter 2-0 mm is dipped 8-00 cm below the surface of water in…

A:

Q: 2.53 Calculate the maximum capillary rise of water between two vertical glass plates spaced 1 mm…

A: The capillary rise of a liquid between two closely spaced parallel plates is given by ∆h =…

Q: A water tank open to the atmosphere at the top has two small holes punched in its side, one above…

A:

Q: Water on a clean glass surface , tends to spread out , while mercury on same surface tends to form…

A: Mercury molecules (which make an obtuse angle with glass) have a strong force of attraction between…

Q: how high above its initial level does the mercury rise in the left arm?

A: Analyze the following figure. When the water is poured into the right arm of the U-tube, the…

Q: A vessel filled with liquid of height h is on a horizontal surface. The vessel has a side opening,…

A: Soln. Let us consider the height of the vessel is H, at a height h from the ground , water is…

Q: In hot-air ballooning, a large balloon is filled with air heated by a gas burner at the bottom. Why…

A: Introduction: A hot air balloon is a type of aircraft which used hot air to levitate on the air.

Q: Water is slightly warmer at the base of a water fall than at the top, Why?

A: At the top, the water has maximum potential energy. As the water starts to fall, potential energy is…

Q: A cylindrical glass beaker of height 1.256m rests on a table. The bottom half of the beaker is…

A: Ans:- Image-1

Q: Calculate the density of air entering the nozzle, if the air leaves a nozzle at a P=1.5atm and…

A: Given: While entering, v1 =150 m/s Inlet to exit diameter ratio = 3:1.5 Inlet diameter = 3p and…

Q: What fraction (in percent) of the fatal iceberg would a passenger on the Titanic have seen above the…

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Q: the specific gravity of nitrogen is almost equal to that of the air. why do you thinki that is?

A:

Q: A 0.550 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is…

A: The mass of the metal cylinder, m=0.550 kg   The inner radius of the plastic tube, r=5.54…

Q: Calculate the diameter for a capilllary tube in which mercury is depressed by 1.21cm, Given surface…

A: The formula for the rise in the capillary tube denoted by h is given by Jurin’s Law which is…

Q: Why there is an excess pressure on the concave side of a liquid surface?

A: If the surface of the liquid is concave, then the resultant force R due to surface tension on a…

Q: An airconditioning system requires a 35mlong section of 15cm diameter duct work to be laid…

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Q: To explore the bottom of a 10-m-deep lake, your friend Tom proposes to get a long garden hose, put…

A: Given data The depth of the lake is: h = 10 m   The expression for the pressure is given as: P=ρgh ρ…

Q: When a steadily flowing gas flows from a larger-diameter pipe to a smaller-diameter pipe, what…

A:

Q: The density of air is 1.3 kg/m3 at sea level. From your knowledge of air pressure at ground level,…

A: The density of the air,

Q: A galss flask of volume 266 cm is totally filled with a mercury at 27 the temprature overflow…

A:

Q: In a mercury type, the pressure is indicated by the

A: ANS: B. height of a column

Q: When a liquid moves through a pipe having a varying diameter, the pressure against the inside walls…

A: According to Bernoulli's principle, a fluid's speed will increase with a decrease in its pressure…

Q: In a pond containing water an air bubble is produced at a depth of 70 cm relative to the surface of…

A: h = 70 cm Pressure due water column = hd g  = 0.7 * 1000 * 9.8  = 6860 Pascals Total pressure =…

Q: A huge spherical helium filled ballon painted to look a cos is prevenetd from floating upward by a…

A: