32-fluids - Phys 211 4/13/09 Chapter 14 Fluids Fluids What...

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Unformatted text preview: Phys 211 4/13/09 Chapter 14 Fluids Fluids What is a fuid ? Anything that fows / take the shape o its container: blood, air, lava Uses o fuids: hydraulic lit barometer blood pressure airplane fight sports We will discuss incompressible fuids Instead o mass and orce use density and pressure Density mass per unit volume (kg/m 3 ) consider the motion of a mass element m = ( V ) V Newtons Laws apply! Density Which one of the following objects has the largest mass? a) a iron solid cube with each side of length r b) an ice solid sphere of radius r c) an iron solid cylinder of height r and radius r d) an ice solid cube with each side of length r e) an iron solid sphere of radius r Pressure Use a mechanical sensor to illustrate/defne pressure p = F A A p = F A Units: N/m 2 = Pa (Pascal) Air Pressure We live at the bottom oF a sea p =14.7 lbs/in 2 (psi) ~ 760 mm Hg (torr) ~ 1.01E5 Pa What happens to pressure as you go up in elevation? Demonstration...
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This note was uploaded on 10/03/2011 for the course PHYS 211 taught by Professor Pettie during the Spring '08 term at South Carolina.

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32-fluids - Phys 211 4/13/09 Chapter 14 Fluids Fluids What...

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