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August 20, 2014

Homework Help: Physics

Posted by College student in need of help on Thursday, March 31, 2011 at 6:08pm.

Let's consider some of the things that affect the velocity of a standing wave on a string: decide whether each of the following statements are T-True, or F-False. (If the first is T and the rest are F, enter TFFFF)

A) The velocity of the wave traveling on a string is higher if you increase the length of the string (keeping the type of string, and the tension of the string, unchanged)
B) Given that waves travel on a guitar string with speed less than the speed of sound in air, and that a guitar string vibrates with frequency f: (T or F) the fundamental frequency of sound waves produced by this guitar will be equal to f.
C) The velocity of the wave traveling on a string is higher if you pluck the string with a slightly larger sideways force
D) The velocity of a wave traveling on a guitar string is increased if you exchange the string for one that is denser (keeping the length and tension unchanged.)
E) Given that waves travel on a guitar string with speed less than the speed of sound in air, and that a guitar string vibrates with a wavelength lambda: (T or F) the resulting sound wave produced in the air will have a wavelength the same as lambda.

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