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Radioactive Decay PLAESE HELP

  1. Apr 16, 2008 #1
    1. The problem statement, all variables and given/known data
    If A is the amount of radioactive material present at time t, A_0_ was the amount present at t=0, and h is the materials half-life, then A=A_0_ 2^-t/h


    Carbon-14 Dating: How old is a wooden statue that remains only one-third of its original carbon-14 content?

    A(t)=A_0_a^t
    3. The attempt at a solution
     
  2. jcsd
  3. Apr 16, 2008 #2

    tiny-tim

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    Welcome to PF!

    Hi KayD! Welcome to PF! :smile:

    You want A(t) = Ao/3.

    So Ao/3 = Ao 2^-t/h;

    so … ? :smile:
     
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