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Mathematics 13 Online
OpenStudy (anonymous):

Suppose a laboratory has a 38 g sample of polonium-210. The half-life of polonium-210 is about 138 days. How many half-lives of polonium-210 occur in 1104 days? How much polonium is in the sample 114days later?

OpenStudy (e.mccormick):

Know what a half life is?

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