33-fluids III - Phys 211 4/17/09 Chapter 14 Fluids Review...

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Phys 211 4/17/09 Chapter 14 Fluids
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Review Fluid: Anything that fows / takes the shape o± its container. m = ρ V Density: Mass per unit volume Pressure: Force per unit area F = pA The pressure at a point in a fuid in static equilibrium depends on the depth o± that point but not on any horizontal dimension o± the fuid or its container. At a given level, the pressure is the same in all directions. p = p 0 + gh Pascal’s Principle: A change in the pressure applied to an enclosed incompressible fuid is transmitted undiminished to every portion o± the fuid and the walls o± its container. Archimedes’ Principle : A body partly or completely submerged is buoyed by a ±orce equal to the weight o± the displaced fuid .
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Weights Overboard You are in a boat with two large, iron anchors. You don’t need them so you throw them overboard and they sink to the bottom of the pond. What happens to the water level of the pond? 1) it gets higher 2) it gets lower 3) it stays the same Floating: Volume of water=weight of anchors is displaced (requires lots of displaced water!) Sunk: Volume of water=volume of anchors is displaced http://www.ac.wwu.edu/~vawter/PhysicsNet/QTMovies/QT-Mech-Main.html
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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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33-fluids III - Phys 211 4/17/09 Chapter 14 Fluids Review...

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