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Homework Help: Magnitude of the charge

  1. May 24, 2010 #1
    1. The problem statement, all variables and given/known data
    A block is attached to a light spring with the equilibrium point at 0.3 m. Then a small charge is applied such that the block move to 0.4. What is the magnitude of the charge?

    2. Relevant equations

    3. The attempt at a solution
    So displacement is .1m

    I have no idea what to do....

    Please Help!
  2. jcsd
  3. May 25, 2010 #2
    i think the data is insufficient
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