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The flows through the pipe of cross sectional areas

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7.The flows through the pipe of cross-sectional areas are Ao= 1.2 cm2andA = 0.35 cm2.The two levels are separated by a vertical distance h =45mm. What is the volume flow rate from the tap?D.
13.2cm3/s8.If mercury barometer reads 76cm Hg, what would alcohol of densityd=800kg/m3reads pressure remain constant?
9.A fire wood board floats in fresh water with 60% of its volume underwater. What is the density of the wood in g/cm3?3
10.A 210-g object apparently loses 30 g when suspended in a liquid ofdensity 2.0g/cm3.What is the density of the object?A.7 g/cm3B.3. 5 g/cm3C. 14 g/cm3D. 1.4 g/cm3
11.The principle of fluid pressure that is used in hydraulic brakes or lifts isthat:
12.Figure below shows a siphon, which is a device for removing liquid froma container. Tube ABC must initially be filled, but once this has beendone, liquid will flow through the tube until the liquid surface in thecontainer is level with the tube opening at A. The liquid has density1000 kg/m3and negligible viscosity. The distances shown areh1= 25 cm, d = 12 cm, and h2= 40 cm. With what speed does theliquid emerge from the tube at C?

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