Fluid - Ch 14 Fluid Mechanics Liu UCD Phy9B 07 1 14-1...

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Liu UCD Phy9B 07 1 Ch 14. Fluid Mechanics
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Liu UCD Phy9B 07 2 14-1. Density Density ρ =m/V - kg/m 3 1 g/cm 3 = 1000 kg/m 3 Specific gravity ρ/ ρ water
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Liu UCD Phy9B 07 3 14-2. Pressure in a Fluid Pressure in a fluid of uniform density (Static Case) p 2 -p 1 =- ρ g ( y 2 -y 1 ) p=p o + gh Pressure is the same for any 2 points at the same level in the fluid. Gauge pressure: Excess pressure above atmospheric pressure
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Liu UCD Phy9B 07 4 Pascal’s Law Pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the walls of the container. 2 2 1 1 A F A F p = = 1 1 2 2 F A A F = Application in hydraulic lift
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5 14-3. Buoyancy Archimedes’ Principle: When a body is completely or partially immersed in a fluid, the fluid exerts an upward force on the body equal to the weight of the fluid displaced by the body . B=
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Fluid - Ch 14 Fluid Mechanics Liu UCD Phy9B 07 1 14-1...

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