A solid, aluminum ingot weighs 78 N in air.

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 section of a condenser measures 41⁄4 inches and has 51 fins. Some of thefins are bent and must be…

A: given,414inchesand 51 fins

Q: A steel tank filled with helium gas doesn’t rise in air, but a balloon containing the same helium…

A: When the buoyant force exceeds its total weight, the object rises in air. A steel tank weighs more…

Q: Place a card over the open top of a glass filled to the brim with water and invert it. Why does the…

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Q: An exploding gunpowder charge creates 3.45e+8 Pa of gas pressure behind a bullet 10 mm in diameter.…

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Q: common small boat for use in quiet streams and lakes has a flat bottom and is approximately…

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Q: When you blow some air above a strip of paper, the paper rises. This is because

A: In the normal situation, the paper is in equilibrium because the downward thrust due to the air…

Q: Distilled water at 10 degrees Celsius stands in a glass tube of 8.0-mm diameter. What is the…

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Q: Porous wood floats awkwardly in a half filled container of water. Pressurized to above atmospheric…

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Q: the density of aluminum is 2700 kg/m^3 at 0 celsius. find its density in 75 celsius

A: Given that ,the value of density of aluminium and temperature is 0  celciusthen we have to determine…

Q: A ring is made of a combination of palladium and silver.  Given the ring's specific gravity and the…

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Q: A U-shaped tube is open to the atmosphere on both ends. Water is poured into the tube, followed by…

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Q: What three criteria control the rate of evaporation of water into the air space above it? The water…

A: Evaporation is the process by which a liquid turns into a gas. Liquids changes into vapour by the…

Q: When a dolphin glides through air, it experiences an external pressure of 0.75 m of mercury. The…

A: Pressure will increase when we move in depth of water

Q: A hollow cylindrical copper pipe is 1.70 m long and has an outside diameter of 3.50 cm and an inside…

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Q: A spherical balloon has a radius of 7.32 m and is filled with helium. How much extra weight could…

A: The radius of the balloon is: The mass of the balloon, Consider the standard values as given below:…

Q: An 80 kg man stands on top of slab of ice on fresh water at 4 degree Celsius. Determine the minimum…

A: Fluids are the materials that have the property of flow. Fluids have lower intermolecular forces of…

Q: A man jumps into a 12 meter pool of kerosene where the area of the pool is 50 square meters and is…

A: A pool of dimensions,  Area, A = 50 m2 Height, h = 12 m The pool is filled of Kerosene.  (a) weight…

Q: A steel needle placed on a water surface floats. Why?

A: The steel needle floats on top of the water because of surface tension. Surface tension happens…

Q: An alloy spring which may e either bronze (relative density=8.8) or brass (relative density=8.4)…

A: Given data: The weight in air is Wa=0.353 N. The weight in water is Ww=0.311 N.

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: An object weighs 12 N in air and 10 N when immersed completely in water. Find the volume of the…

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Q: %3D Water flows at 1.1 m/s through a hose with an internal diameter of 1.11 cm, exiting through a…

A: given:v1 =1.1 m/sd1 =1.11 cm =0.0111 mv2 =4.4 m/sd2 =?

Q: When a car is driven some distance, the air pressure in the tires increases. Why? Should you let out…

A: According to the conservation law of energy, the tires' movement and the friction between the tires…

Q: A boy weighing 1000 N in the air can just float in seawater when almost entirely submerged. What is…

A: Given data The weight of the boy in the air is Wair = 1000 N

Q: What fraction of a piece of lead will be submerged when it floats in mercury?

A: To find: The fraction of the lead submerged in water Known values: The density of the lead ρpb= 11.3…

Q: A steel tank filled with a helium gas doesn't rise in air, but a balloon containing helium gas rises…

A: If the buoyant force exceeds the weight of an object, the object will rise in air.

Q: Why does a helium filled balloon float in air?

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Q: A cork floats on the surface of an incompressible liquid in a container exposed to atmospheric…

A: Solution: Option (A) floats at the same height.

Q: A rocket engine shoots exhaust gas at 5.0E8 Pa of gas pressure through a nozzle whose area is 0.3 m…

A: Pressure Pressure is defined as the force applied perpendicular to a surface per unit…

Q: he block of ice (temperature 0°C) shown in the figure below is drawn over a level surface lubricated…

A: the magnitude of the force F needed to pull the block with a constant speed can be expressed as…

Q: What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal…

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Q: Find the mass and weight of the air in a living room at 20°C with a 4.0x5.0 m floor and a ceiling…

A: m=ρairV=1.225 kg/m34.0 m×5.0 m×3.0 m=73.5 kg   Weight of air w=mg=73.5 kg9.8 m/s2=720 N

Q: A 8.0 kg freshwater fish at the surface of a lake is neutrally is neutrally buoyant. If the density…

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Q: 11A). The air speed over the top of a wing needs to be faster than the air speed under the wing.…

A: Solution: The difference in the airspeed above and below the wing creates the pressure difference…