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Im really stuck on this basic formula

  1. Feb 2, 2010 #1
    what do i do to p and c to get z when

    z=pc

    please help i know its prob dumb but i am so stuck.
     
  2. jcsd
  3. Feb 2, 2010 #2
    what is z, p, and c
     
  4. Feb 2, 2010 #3
    acoustic impedance z
    density p
    speed of sound c

    the speed of sound is 330 ms-1
    density is 1.3 kg m-3
    i need to know what to do with density and spped of sound to get acoustic impendance i know the answer is 0.00043 kg m -2 s-1 x10 but i do not know how to work out the formula?
     
  5. Feb 2, 2010 #4
    z=pc means z=p times c.
     
  6. Feb 2, 2010 #5
    thankyou
     
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