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How do I find the phase difference between two oscillators

  1. Dec 8, 2012 #1
    1. The problem statement, all variables and given/known data

    Find the phase difference between two harmonic oscillators at time t=1

    2. Relevant equations
    I've already found x(t)= .4 cos(2.1t) and x(t)= .4cos((pi/2)t + pi)


    3. The attempt at a solution
    I don't really know where to begin
     
  2. jcsd
  3. Dec 8, 2012 #2

    TSny

    User Avatar
    Homework Helper
    Gold Member

    Hello, and welcome to PF!

    Start with recalling (or finding) the definition of the word "phase" for simple harmonic motion.
     
  4. Dec 8, 2012 #3
    Hey thanks! :)

    Oh wow...Okay now I got it. Just plug in 1 for t and subtract the two terms in the parentheses. Thanks for the lead!
     
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