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Physics 1A, Section 6

Physics 1A, Section 6. December 4, 2008. Section Business. Final is 4 hour long. History suggests you should expect an orbit problem. History suggests you should expect a fluid problem (continuity eq., Bernoulli’s eq., Archimedes’ princ.).

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Physics 1A, Section 6

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  1. Physics 1A, Section 6 December 4, 2008

  2. Section Business • Final is 4 hour long. • History suggests you should expect an orbit problem. • History suggests you should expect a fluid problem (continuity eq., Bernoulli’s eq., Archimedes’ princ.). • Otherwise, covers the full course, back to week 1. • I’m observing in Hawai’i Dec. 5 – 17. • only available by email: cdd@submm.caltech.edu

  3. OM, Problem 4-55

  4. OM, Problem 4-55 • Answer: maximum height = R + R/2[Rg/u2 + u2/Rg] (for u2 ≥ Rg) specific case: u = 30 km/h, R = 0.80 m, g = 9.80 m/s2 4.39 m

  5. Quiz Problem 5

  6. Quiz Problem 5 • Answer: a) gravity, normal force, friction b) a = g[sin - cos] c) gravity, tension, fictitious force up the ramp d) tan = 

  7. Quiz Problem 31

  8. Quiz Problem 31 • Answer: a) v´ = v M1/(M1+M2) b) v ≥ √(5Rg) (M1+M2)/M2

  9. The Physics of Billiards F • Question: At what height should a billiard ball be struck so that it rolls without slipping? (Assume negligible coefficient of friction from the table.) h

  10. The Physics of Billiards • Answers: h = 7/5 R, R = radius

  11. conservation of angular momentum inelastic collision conservation of energy after collision physical pendulum initial conditions

  12. Archimedes’ Principle

  13. OM Problem 18-82

  14. OM Problem 18-82 • Answer: zmax = h/2 xmax = h

  15. OM Problem 9-69

  16. Section Business • Final is 4 hour long. • History suggests you should expect an orbit problem. • History suggests you should expect a fluid problem (continuity eq., Bernoulli’s eq., Archimedes’ princ.). • Otherwise, covers the full course, back to week 1. • I’m observing in Hawai’i Dec. 5 – 17. • only available by email: cdd@submm.caltech.edu

  17. OM, Problem 3-62

  18. Quiz Problem 33

  19. Quiz Problem 33 • Answer: • a)  = v/R • b) sin  = kv/(mgR2) • c) mgv = k2

  20. conservation of angular momentum relative velocities

  21. Bernoulli’s Equation continuity equation

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