Question: A(t) = A 0 e kt Phosphorus -32 is a radioactive isotope used for medical applications. If 95.27% of the initial amount is present after

A(t) = A0ekt

Phosphorus -32 is a radioactive isotope used for medical applications. If 95.27% of the initial amount is present after 1 day...

A) What is the decay rate, k?

B) What is the half life?

C) What percent remains after 20 days?

D) After how many days will less than 15% remain?

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