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Homework Help: Equation for Sound wave power.

  1. May 7, 2006 #1
    Was the formula tha links power and frequency (a formula that dosen't include intensity)?
     
  2. jcsd
  3. May 7, 2006 #2
    Wouldn't it just be the amplitude of the wave?
     
  4. May 8, 2006 #3

    FredGarvin

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    Science Advisor

    Power from a spherical source, is defined, in the far field as:

    [tex]\Pi = \frac{4 \pi r^2 p^2_{rms}}{\rho_o c}[/tex]
     
  5. Jul 30, 2010 #4
    How do you derive this equation? Thanks
     
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