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Home Q & A Board Science-Related Homework Help Physics
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sorasora sorasora
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7 years ago
Please help me, Im not sure how to get the right answer

Cobalt-60 decays to nickel-60 via 
 with a half-life of 5.27 years. A pure sample of cobalt-60 is prepared, with
no contamination of other isotopes. After 5.27 years, what is the ratio of cobalt-60 to nickel-60 in the sample?
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wrote...
#1
Educator
7 years ago
t = ln(2) / k

sub 5.27 into your t to find your k value.

i.e.

ln(2) / 5.27 = k constant.

Now use that in y = a e ^kt, leave ''a'' as it is.
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