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# trouble with waves 1D watch

1. 1. A given string length L, connected at one end while the other end is free. Assume that the string moves in one dimensional, ie, the amplitude can be described by a function of the shape of his y (x, t).
What is the average kinetic energy (as a string), assuming it moves with the lowest frequency possible?
Given that when the string is perfectly horizontal its tension = To and amplitude motion is A.

T0 = 2.76 [gram*cm/sec2]
L = 5.25 [cm]
A = 5.86 [cm]

2. <sin2(at)>=<cos2(at)>=1/2. (average)

3. With boundary conditions find the frequency of the wave vector, and then calculate the kinetic energy

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Updated: March 26, 2013
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