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OpenStudy (anonymous):
The decay constant of a radioactive nuclide is 9.5x10^-3 s^-1 . At given instant, the activity of a specimen of the nuclide is 80 mCi. The time interval required for the activity to decline to 40 mCi is closest to: ?
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OpenStudy (anonymous):
Do you know your equations for radioactive decay?
OpenStudy (anonymous):
I got t=73 using the half-life formula?
OpenStudy (paki):
i got 71.885
OpenStudy (anonymous):
t=72.9629... approx=73 ?
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