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31 August, 07:57

The radioactive substance cesium-137 has a half-life of

30

years. The amount

At

(in grams) of a sample of cesium-137 remaining after

t

years is given by the following exponential function.

+1
Answers (1)
  1. 31 August, 09:01
    0
    A (t) = A0 * (1/2) ^ (t/30)

    where t=elapsed years

    A0=initial mass at t=0.
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