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Oscillation Problems

  1. Aug 27, 2008 #1
    1. The problem statement, all variables and given/known data

    A mass m at the end of a spring oscillates with a frequency of 0.83 Hz. When an additional 680-g mass is added to m, the frequency is 0.60 Hz. What is the value of me?

    2. Relevant equations

    w = 2 pi f

    w^2 = k / m

    3. The attempt at a solution

    m = .74725 kg

    I'll probably be adding a few more problems, as my textbook didn't come with a solutions manual. I wish it did.
  2. jcsd
  3. Aug 28, 2008 #2
    Hmm.. I got 0.744kg.

    Did you find w first and then sub it in with a rounded off value?

    Or did you find m algebraically and then evaluate?
  4. Aug 28, 2008 #3
    Our answers are close enough. It looks like I did it correctly.

    I found the two "w"s first, expressed the masses in terms of m, setup a ratio and solved for m.
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