A light string with a mass per unit length of 5.60 g/m has its ends tied to two

Question

A light string with a mass per unit length of 5.60 g/m has its ends tied to two walls separated by a distance equal to three-fourths the length of the string. An object of mass m is suspended from the center of the string, putting a tension in the string. (Please see http://i46.tinypic.com/oa9dg0.gif ) (a) Find an expression for the transverse wave speed in the string as a function of the mass of the hanging object. (Answer in terms of the mass m and note that this is the speed due to the mass/unit length and tension.) [This is a formula, please provide me with it] (b) What should be the mass of the object suspended from the string in order to produce a wave speed of 45.0 m/s? ______________ kg

Explanation / Answer

The speed of propagation of a transverse wave in a string of linear mass

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