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Homework Help: Radiocarbon Dating

  1. Dec 13, 2009 #1
    1. The problem statement, all variables and given/known data
    The practical limit to ages that can be determined by radiocarbon dating is about 41000 yr. in a 41000 yr old sample, what percentage of the original carbon-14 remains?


    2. Relevant equations

    77f6e8299e212fc042a38109f6651035.png

    3. The attempt at a solution
    I don't know where to start....
     
  2. jcsd
  3. Dec 13, 2009 #2

    diazona

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    Look at the variables in that equation. Which of them do you know, or can find out? And which represent the thing you're trying to find?
     
  4. Dec 13, 2009 #3
    I think t=41000, N/No is what i need?
    But how do you determine the half life?
     
    Last edited: Dec 13, 2009
  5. Dec 14, 2009 #4

    diazona

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    Look it up. I think you should find something like 5700 years.
     
  6. Dec 14, 2009 #5
    [tex]N_0[/tex] is the initial percentage of carbon-14, so it would be 100. So we need to find what percentage remains.
     
    Last edited: Dec 14, 2009
  7. Dec 14, 2009 #6
    I see,ty!
     
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