What is the density of the rectangular solid in the diagram? If the water level in the beaker was initially at the top, how much water would spill out of the beaker?

Q: A horizontal water pipe goes from a large diameter to a small diameter and then back to the first…

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Q: The figure below shows a water tank and a reservoir separated by a valve. The water level in the…

A: Apply Bernoulli’s equation between point A and point B. Here, P, ρ and h represent the pressure,…

Q: The figure belows shows a closed tank holding air and oil to which is connected a U-tube mercury…

A: Given, L1=4ftL2=0.5ftL3=1.75ft Oil density, ρoil=55lb/ft3 Mercury density, ρmercury=845lb/ft3 For…

Q: A piston of cross-sectional area a is used in a hydraulic press to exert a small force of magnitude…

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Q: In a hydraulic press the small cylinder has a diameter of 8.0 cm, while the large piston has a…

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Q: A 2.0m diameter vertical cylinder, open at the to, is filled with ethyl alcohol to the mark. A…

A: From continuity equation,

Q: A piston of cross-sectional area a is used in a hydraulic press to exert a small force of magnitude…

A: Pressure at small piston = Pressure at large piston  Fs/As = FL/AL

Q: A mercury filled manometer with two unequal length arms of the same cross-sectional area is sealed…

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Q: What is the physical significance of the Reynolds number? How is it defined for (a) flow in a…

A: Reynolds number is a number used under the context of fluid mechanics which describes the types of…

Q: Consider a glass of water that is 10 cm tall. Set the bottom of the glass, where it touches the…

A: Origin (bottom of glass), y = 0 Height of glass, y = 10 cm Position where pressure is largest = ?

Q: A horizontal pipe 10,0 cm in diameter has a smooth reduction to a pipe 5,00 cm in diameter. If the…

A: Using the continuity equation, Substitute the known values and solve as:

Q: A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead,…

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Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.