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Steel wire sound problem

  1. Apr 6, 2014 #1
    1. The problem statement, all variables and given/known data
    A steel cable is vibrating in its third harmonic. The Frequency is 150Hz
    1. What is the length of the cable?

    2. What is the wavelength?

    2. Relevant equations

    3. The attempt at a solution
    I am really stuck
  2. jcsd
  3. Apr 6, 2014 #2

    Simon Bridge

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    Science Advisor
    Homework Helper

    Thats OK - we can help with that.
    Where do you get stuck?

    Do you know what is meant by the "third harmonic"?
    Do you know about "standing waves"?
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