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Two transverse sinusoidal waves combining in a string are described by the wave
functions y1 = 0.02 sin(3Ttx+Ttt) and y2 = 0.02 sin(3Ttx-rtt), where x and y are in
meters, and t is in seconds. If after superposition, a standing wave of 3 loops is
%3D
formed, then the length of the string is:

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