# TUTORIAL 4-FLUID MECHANICS.docx - PHY 210/MECHANICS II AND...

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PHY 210/MECHANICS II AND THERMAL PHYSICS/TUTORIALTUTORIAL 4:FLUID MECHANICS1.A solid sphere has a radius of 1.5 cm and a mass of 0.038 kg. What is the specific gravity of thesphere?2.An object has a volume of 4.0 m3and weighs 40000 N. Find its apparent weight in water?3.Oil flows at a velocity of 1.0 m/s through section X of a circular pipe of a diameter 10 cm. The oil rises12 m and flows through section Y of the pipe of diameter 5.0 cm as shown in the diagram. Determine:a.The volume flow rateb.the mass flow rate of the oil at section X.c.The velocity of oil at section Y.)
4.How high is the level of a mercury barometer on a day when atmospheric pressure is 98.6 kPa?(Density of mercury = 13.6 x 103kg/m3).
5.A water hose 2.0 cm in diameter is used to fill a 20-liter bucket. If it takes 1.0 minute to fill the bucket,what is the speed at which the water leaves the hose? (1 liter = 103cm3).
6.A solid cube is 0.75 cm on each side. It floats in oil of density 800 kg/m3with one third of the blockout of the oil. What is the buoyant force on the cube?
7.A 500 N weight sits on the small piston of a hydraulic machine. The area of the small piston is 2.0 cm2.

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