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Phys.2211 practicing problems

Phys.2211 practicing problems. • Review the tests, quizzes. • Practice ‘stop to think’ Chap10—17 • Practice ‘stop to think’ and examples Chap 20 and 21 • Summarize the homework. Final exam. schedule: MW class: Dec. 8 Monday, 5:00pm TR class Dec. 11 Thurs. 10:15am.

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Phys.2211 practicing problems

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  1. Phys.2211 practicing problems • Review the tests, quizzes. • Practice ‘stop to think’ Chap10—17 • Practice ‘stop to think’ and examples Chap 20 and 21 • Summarize the homework. Final exam. schedule: MW class: Dec. 8 Monday, 5:00pm TR class Dec. 11 Thurs. 10:15am

  2. comprehensive problems1.You may use this way to get a bullet speed. Suppose a bullet of mass 8.00 g is fired into a block of mass 2.50 Kg initially at rest at the edge of a frictionless table of height 1.00m. The bullet remains in the block, and after impact the block lands a distance 2.00 m from the bottom of the table, Determine the initial speed of the bullet. (1388m/s)

  3. 2. See the problem 10.42, Page 298suppose the collision between the packages is elastic(1) to what height does the package of mass m rebound?( 1/3m)(2) what is the kinetic energy of the block of 2m, and what is the percentage of this kinetic energy to total kinetic energy? (8/9 = 89%)(3) if m and 2m stick together after collision, what is the kinetic energy left after collision.

  4. (3) A ball of mass m is attached to a string of length L. It is being swung in a vertical circle with enough speed so that the string remains taut throughout the ball's motion. • Find Tb-Tt, the difference between the tension in the string at the bottom relative to that at the top of the circle in terms of m, g

  5. 4. See the problem 12.71, (page 382), if we neglect the friction between m1 and table. The pulley mass is mp, what is the acceleration? If m2 start h (m) from the ground, what is the speed when m2 hit the ground, you also can get that speed using work and energy equation. Try do that.

  6. 5. Santa Claus stands on the top of the hill, he is sending the Christmas gifts to you, a sphere, a cylinder, and circular hoop all of mass M and radius R. they are rolling down from rest at the same instant of time, which will get the bottom of the hill first? Why? • Please show the time for each one

  7. 6. As you did in your lab for the ring pendulum, suppose this ring pendulum consists of a thin metal ring that can be suspended from a knife edge. a) What is the period if the ring diameter is 10 cm • b) If you plot log T vs log D( diameter) what is the slope? • c) If you had data from a lot of T and D, how you use a slope to find the gravitational acceleration g?

  8. 7. See the figure: Can you increase the gas temperature without changing the pressure? If so, describe how you would do it. If not, explain why not.Hint: you can heat the gas on the bottom, but not add any mass on the piston, so mass maintains a constant pressure in the cylinder, but heat energy is transferred into the gas, makes temperature increase, as well as gas will expandfrom PΔV=nRΔT, you may get how much temperature increasing. This is constant pressure process, Q = nCp ΔT

  9. 8. If you had data from a lot of different frequencies and you measured the water level from the first resonance to the next resonance. How could you use a slope to find the speed of sound? Explain it. You may review your lab and explain

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