Asked by bekah
A sample of radon has an activity of 80,000 Bq. If the half-life of radon is 15 h, how long before the sample's activity is 5,000 Bq?
Answers
Answered by
MathMate
Half life = 15h
Activity
A(t)=A(0)*2^(-t/15)
Solve for t in
A(t)=5000=80000(2^(-t/15))
to get t=60 (hours)
Activity
A(t)=A(0)*2^(-t/15)
Solve for t in
A(t)=5000=80000(2^(-t/15))
to get t=60 (hours)
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