1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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: Angular frequency, phase velocity, and period

  1. Mar 7, 2009 #1
    1. The problem statement, all variables and given/known data
    Given: angular frequency=2000pi
    phase velocity=320m/s
    period=? unknown

    2. Relevant equations
    f=w/2pi; w=omega. T=1/f. phase velocity = lambda/T

    3. The attempt at a solution
    i don't know what the sgnificance of the phase velocity is. this is because from 1/T = w/2pi, i can already compute the T=2pi/w or 1x10^-3. unfortunately, it s not in the choices. can someone help? thanks!
  2. jcsd
  3. Mar 7, 2009 #2
    The phase velocity isn't important. If you have angular velocity (w) then you can always find T using T = 2pi/w.
  4. Mar 7, 2009 #3
    2pi/w should give piX10^03, not 1X10^-3.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook