posted by Sarah .
If the physical half-life of sulfur-35 is 87.1 days, and the biologic half-life in the testicle is 632 days, what is its effective half-life in this organ?
I know i have to find the time and then the half-life.
But im having trouble finding the time
A(t)=Ao x e ^ (-0.693) (t) / T1/2 [half=life]