66. A string of length L consists of two sections. The left half has mass per unitlength u= µ, /2, while the right has a mass per unit length µ' = 3µ = 3µ, 12µ.0.Tension in the string is T. Notice from the data given that this string has the sametotal mass as a uniform string of length L and mass per unit length u. (a) Find thespeeds v and v' at which transverse pulses travel in the two sections. Express thespeeds in terms of T, and µ, and also as multiples of the speed v, = (T,I H)"². (b)Find the time interval required for a pulse to travel from one end of the string to theother. Give your result as a multiple of At = L/v,.

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Answered: 66. A string of length L consists of…

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