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: Find the wave length

  1. May 13, 2008 #1
    1. The problem statement, all variables and given/known data
    Dogs are able to hear mucher hgher frequencies than humans are capable f detecting. For this reason, dog whistles that are inaudible to the human ear, can be easily heard by a dog. If a dog whistle has a frequency of 30,0000 Hz, what is the wavelength of sound emitted.

    2. Relevant equations



    3. The attempt at a solution
    Well I was trying to find the wavelength using the equation speed=Hz(Wavelength) but I dont have the speed. So Im really lost. If
    anyone could guide me in some helpful equations I might need, because I have a quiz on this tomorrow
     
  2. jcsd
  3. May 13, 2008 #2

    Defennder

    User Avatar
    Homework Helper

    Are you sure the book/excercise you got the question doesn't give you the speed?
     
  4. May 13, 2008 #3
    Yea positive. Checked it twice thats why I was confused.

    Maybe I have to know the speed of sound through Air?
     
    Last edited: May 13, 2008
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook