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Physics 2053C – Fall 2001

Physics 2053C – Fall 2001. Chapter 10 Fluids. Pressure and Density. Density = Mass/Volume Pressure = Force/Area Buoyant Force is the force created by a displaced material. Density. Density = Mass/Volume.  = M/V. A property of the material. Density of Water = 1000 kg/m 3 .

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Physics 2053C – Fall 2001

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  1. Physics 2053C – Fall 2001 Chapter 10 Fluids Dr. Larry Dennis, FSU Department of Physics

  2. Pressure and Density • Density = Mass/Volume • Pressure = Force/Area • Buoyant Force is the force created by a displaced material.

  3. Density • Density = Mass/Volume. •  = M/V. • A property of the material. • Density of Water = 1000 kg/m3. • Weight = gV (since M = V).

  4. Pressure • Pressure = Force/Area. • P = F/A. • Depends on the height of the fluid. • Same in all directions. • Units are: • Force/Area = N/m2. • Pascals  1 Pa = 1 N/m2. • Atmosphere  1 atm = 1.013 X 105 N/m2.

  5. Pressure • Pressure = Force/Area. • P = F/A. • Depends on the height of the fluid. F = Mg = (V)g = (  (A*h) )g F/A = (  (A*h) )g / A = gh P = gh

  6. Buoyant Forces • Force exerted by a displaced liquid. Ft-Fb = B gAht - gAhb = B B = gA(ht – hb) = Wt - Wb = B B = A(ht – hb) * g

  7. Next Time • Todd Adams will give lecture on Friday. • Continue Chapter 10. • CAPA Problems. • Please see me with any questions or comments. See you Next Monday.

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