Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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

    User Avatar

    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.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook