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posted by Alex Monday, June 11, 2012 at 11:39am.
A wave on a string has a speed of 400 m/s. If the tension in the string is 131 N and its length is 3.5 m, what is the mass of the string?
v = sqrt(T•L/m) v²= T•L/m, m= T•L/ v² =.....
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