SCIENCE

A string of length 8 m fixed at both the ends has a tension of 49 N and a mass 0.04 kg.
Find the speed of transverse waves on this string.

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  1. You should have been taught about this formula for the wave speed, V.

    V = sqrt (T/d)

    T = tension = 49 N
    d = density per length = 0.04/8 = 0.005 kg/m

    V = sqrt(49/.005) = 99 m/s

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