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Reading:

Cutnell and Johnson, Chapters 16 and 17.

Problems for Review:

Reviewing these problems gives you good exposure to this week's main topics, in practice. All solutions are posted on our website |http://www.cc.emory.edu/PHYSICS/Faculty/Benson/141/review.html|. Quantitative solutions are also in the Student Study Guide.

Conceptual:

MCAT review problem 15 (on website).

Quantitative:

Chapter 16, problems 3, 23, 49, 63, 73.
Chapter 17, problems 7, 19, 31, 27, 47.

Problems to Hand In:

Conceptual:

Use the following to answer free response questions 1 -- 10:

A horizontal, stretched spring carries a sinusoidal wave train described by the equation .

In what direction along the x-axis is the wave moving? Explain your reasoning.
What is the physical meaning of A? Explain how you arrive at this interpretation.
In terms of a and/or b, what is the frequency f of the wave train? Explain your reasoning.
In terms of a and/or b, what is the time for a particle on the string to go through one complete cycle of its up-and-down motion? Explain your reasoning.
In terms of a and/or b, what is the propagation velocity of the wave train? Explain your reasoning. (Note that the wave train's wavelength , as given below.)
In terms of a and/or b, at what values of x are the deflections of the string zero at the instant t=0? Show your mathematical reasoning.
What would be the physical effect of changing the plus sign in (ax+bt) to a minus sign? Explain how you arrive at your answer. Questions 8-- 10 involve the following specialization:
Say this wave train moves on a string whose length L equals the wave train's wavelength .
If the string has both ends fixed, can a standing wave be produced? If not, state why it cannot; if so, sketch it.
If the string has both ends free, can a standing wave be produced? If not, state why it cannot; if so, sketch it.
If the string has one fixed end and one free end, can a standing wave be produced? If not, state why it cannot; if so, sketch it.

Quantitative I: