As we saw a radioactive substance decays exponentially: The mass at time t is m(t) = m(0)e

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As we saw a radioactive substance decays exponentially: The mass at time t is m(t) = m(0)ekt, where ms0d is the initial mass and k is a negative constant. The mean life M of an atom in the substance is

For the radioactive carbon isotope, 14C, used in radiocarbon dating, the value of k is –0.000121. Find the mean life of a 14C atom.

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Calculus Early Transcendentals

ISBN: 9781337613927

9th Edition

Authors: James Stewart, Daniel K. Clegg, Saleem Watson, Lothar Redlin

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