Homework 3 - Physics 150 Fall 2003
Due September 24, 2003

  1. Write in your own words a short essay on Newton's theory of gravitation. Describe the observations that are accounted for by the theory, and justify that this is a scientific theory. In addition, describe in your words ways in which Netwon's theory goes beyond previous work.

  2. Questions/Problems in the text, March
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    Chap. 2, Problem 10
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    Chap. 3, Question C. In addition to the explanation in terms of Netwon's laws give an explanation in terms of conservation of momentum.

    Chap. 3, Problem 2

    Chap. 3, Problem 6

    Chap. 3, Problem 8
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    Chap. 4, Question A

    Chap. 4, Problem 5 (The answer is given in the book. For credit, show clearly your work to get answer.)
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    Chap. 5, Question B

    Chap. 5, Problem 2
    Continuing Problem 2: If the mass in problem 2 is released from rest at a height of 30 meters, what is its kinetic energy when it falls to the original height of 0 meters?

    Remember that there are hints, worked exercise that covers several examples, and there are answers to odd-numbered problems that are very similar to problems assigned.