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Homework Help: Another quick physics problems (wave motion)

  1. Jul 27, 2004 #1
    A 30.0 m steel wire and a 20.0 m copper wire, both with 1.00-mm diameters are connected end to end and stretched to a tension of 150 N. How long does it take a transverse wave to travel the entire length of the two wires?
    I really dont need an answer but rather something to get me going.
  2. jcsd
  3. Jul 27, 2004 #2

    Doc Al

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    Staff: Mentor

    The speed of the wave depends on the tension and the mass per length:
    [tex]v = \sqrt{\frac{T}{(M/L)}}[/tex]
    Where T = tension, M/L = mass per unit length of the wire.
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