If a string has a density of 1.2 g/m and a 329 g weight is attached, what is the expected wave velocity of the string?
Give only the numerical answer to one decimal place without units. Answer will be graded to within +/- 0.5 of the correct answer so do not round until the final answer.

v=51.9

Explanation:

The velocity on a string is:

(1)

with T the tension of the string and μ its linear density. By Newton's first law for a uniform string, the tension is the force applied in one extreme of the string, in this case it is the weight attached to it so T=W=mg. Using that on (1):

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