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July 7, 2015

Homework Help: Calculas

Posted by Cratch on Thursday, August 26, 2010 at 2:26am.

In the early 1960s, radioactive strontium-90 was released during atmospheric testing of nuclear weapons and got into the bones of people alive at the time. If the half-life of strontium-90 is 32 years, what fraction of the strontium-90 absorbed in 1965 remained in people's bones in 1996?

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