# tut6 - Physics One- Phys 110 2013 Tutorial 6: University...

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Physics One- Phys 110 2013Tutorial 6: University Physics, 13ed, Chapter 12, Fluid MechanicsThe problems which appear in bold text are compulsory and is the minimumrequirement for this chapter.1. You purchase a rectangular piece of metal that has dimensions of5:0°15:0°30:0mmand mass 0.0158 kg. The seller tells you that the metal is gold. To check this, youcompute the average density of the piece. What value do you get? Were you cheated?(density of gold is 19.3°103kg/m3)2. A hollow cylindrical copper pipe is 1.50 m long and has an outside diameter of 3.50cm and an inside diameter of 2.50 cm. How much does it weigh?3.Scientists have found evidence that Mars may once have had an ocean 0.500km deep. The acceleration due to gravity on Mars is 3.71 m/s2.(a) What would be the gauge pressure at the bottom of such an ocean, assuming itwas freshwater?(b) To what depth would you need to go in the earth°s ocean to experience the samegauge pressure?4. A barrel contains a 0.120 m layer of oil ±oating on water that is 0.250 m deep. Thedensity of the oil is 850 kg/m3.(a) What is the gauge pressure at the oil²water interface?(b) What is the gauge pressure at the bottom of the barrel?5. An electrical short cuts o/ all power to a submersible diving vehicle when it is 30m below the surface of the ocean. The crew must push out a hatch of area 0.75 m2and weight 300 N on the bottom to escape.If the pressure inside is 1.0 atm, what

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Term
Spring
Professor
Allen
Tags
Kilogram, gauge pressure