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Physics II PHY 202/222 Fluid Mechanics

Physics II PHY 202/222 Fluid Mechanics. 452 South Anderson Road Rock Hill, SC 29730 www.yorktech.com. Fluid Mechanics – Test 1. Beiser Chapters 16 & 17 Multiple Choice – All Supplementary Problems – 16 even, 17 odd Browne Chapter 15 for PHY 222 Students Supplementary Problems - Odd.

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Physics II PHY 202/222 Fluid Mechanics

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  1. Physics IIPHY 202/222Fluid Mechanics 452 South Anderson Road Rock Hill, SC 29730 www.yorktech.com

  2. Fluid Mechanics – Test 1 • Beiser Chapters 16 & 17 • Multiple Choice – All • Supplementary Problems – 16 even, 17 odd • Browne Chapter 15 for PHY 222 Students • Supplementary Problems - Odd

  3. Chapter 16 – Fluids at Rest Beiser p.190

  4. Density Density is the mass per unit volume of a substance. Beiser p.190

  5. Density Examples Beiser Solved Problem 16.3 p.191 – An oak beam 10 cm by 20 cm by 4 m has a mass of 58 kg. Find the density of the beam. Beiser Solved Problem 16.2 p.191 – Find the volume of a 250 kg lion if the density of mammals is equal to water. Beiser p.190,1

  6. Densities of materials Liquids • Gas .68 g/cm3 • Water 1 g/cm3 • Sea 1.025 g/cm3 • Hg 13.6 g/cm3 Solids • Wood .3-.9 g/cm3 • Ice .91 g/cm3 • Stone 2.3 g/cm3 • Al 2.7 g/cm3 • Iron 7.8 g/cm3 • Steel 7.8 g/cm3 • Cu 8.9 g/cm3 • Pb 11.3 g/cm3 • Au 19.3 g/cm3 Gases • He .179 g/cm3 • Steam .598 g/cm3 • Air 1.29 g/cm3 Beiser p.190

  7. Specific Gravity Specific Gravity is the density of a substance divided by the density of water. This is a nice way to say that lead is 11.3 more dense than water. Beiser p.190

  8. Pressure Pressure is the ratio of the force on an object to the area over which the force is distributed. Beiser p.191

  9. Other Units of Pressure Beiser p.191

  10. Gauge Pressure Gauge pressure is what a pressure gauge reads – shows the pressure above atmospheric pressure Beiser p.191-2

  11. Hydrostatic Pressure Gauge pressure is what a pressure gauge reads – shows the pressure above atmospheric pressure Beiser p.192-3

  12. Archimedes’ Principle/Buoyancy Buoyant force is equal to the weight of the of the fluid displaced by an object. If the buoyant force is more than the weight of the object, the object floats. FB (the buoyant force) mg (the weight) Beiser p.193

  13. Hydraulic Press Beiser p.195

  14. Chapter 17 - Fluids in Motion Beiser p.201

  15. Fluid FlowEquation of continuity v1 v2 d2 d1 Beiser p.201

  16. Bernoulli’s Equation p2 h2 p1 v2 h1 v1 Relates pressure, velocity and change of height of fluid moving in a pipe Beiser p.203-4

  17. Torricelli’s Theorem Gives the velocity of fluid escaping from a hole a distance h below the surface of the fluid. Beiser p.204

  18. Viscosity & Poiseuille’s Law Beiser p.207-8

  19. Reynold’s Number Beiser p.208

  20. Worked Examplesfrom chapters 16 and 17 of Beiser

  21. 16.7 SP Beiser

  22. 16.9 SP Beiser

  23. 16.11 SP Beiser 16.15 SP Beiser

  24. 16.17 SP Beiser

  25. 16.19 SP Beiser

  26. 16.21 SP Beiser

  27. 17.2 SP Beiser

  28. 17.4 SP Beiser

  29. 17.6 SP Beiser

  30. 17.10 SP Beiser

  31. 17.12 SP Beiser

  32. 17.14 SP Beiser

  33. 17.18 SP Beiser

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