Question: need urgent solution 9. Consider a radioactive substance with a half-life of 28 days. Suppose mo = 50 mg is the initial mass. (a) Determine

need urgent solution

9. Consider a radioactive substance with a half-life of 28 days. Suppose mo = 50 mg is the initial mass. (a) Determine an expression for m (t) , the mass after t days. (b) Determine the mass after 40 days. (c) At what time f will the mass be reduced to 2 mg? Include the units of measurement in your answers

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