Freud Mark

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Questions

The following questions were asked by visitors named Freud Mark.

Suppose f(t) = P0e^-0.3t grams of radioactive substance are present after t seconds. If 200 grams of substance are present initially, how much is present after 4 seconds? What is the half-life of the substance?
9 years ago

Answers

The following answers were posted by visitors named Freud Mark.