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    Radioactive decay

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    Find the half-life of a radioactive material if, after one year 99.5713% of the amount remains, also write the formula for finding the amount of this material after (t) years, and how much will remain in 500 years?

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    https://brainmass.com/physics/half-life/radioactive-decay-example-problem-15826

    Solution Preview

    N(t)= N(0) exp (-lambda t)
    where
    N(t)= Amount at time t
    N(0)= Amount at time 0
    lambda = decay constant
    t= time elapsed

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    Solution Summary

    This solution finds the half-life of a radioactive material and the amount that will remain in 500 years.

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