3. a radioactive substance has a half - life of 10 years. what is the decay constant k in y = y0e^(-kt)?\na…

3. a radioactive substance has a half - life of 10 years. what is the decay constant k in y = y0e^(-kt)?\na. k = ln(2)/10\nb. k = ln(2)/15\nc. k = ln(2)/5\nd. k = ln(10)

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