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31 May, 12:07

A geologist in South America discovers a bird skeleton that contains 77% of its original amount of C-14.

Find the age of the bird skeleton to the nearest year

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  1. 31 May, 14:48
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    nightowl

    N=N0e^-kt

    N0 just means the amount of C-14 at time zero (when the bird dies), or the initial number of grams

    Step-by-step explanation:

    .57*N0 = N0*e^ (-0.0001*t)

    N0 cancels out

    .57 = e^ (-0.0001*t)

    ln (.57) = -.0001*t

    ln (.57) / -.0001=t

    t = 5621.189

    the bird's skeleton is 5621 years old

    Report · 3/1/2016
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