1. A tree contains a known percentage po of a radioactive substance with a half - life T. When the tree dies, the substance decays and isn't replaced. If the percentage of the substance in the fossilized remains of such a tree is found to be pt, how long has the tree been dead?

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1. A tree contains a known percentage po of a radioactive substance with a half
- life T. When the tree dies, the substance decays and isn't replaced. If the
percentage of the substance in the fossilized remains of such a tree is found
to be p1, how long has the tree been dead?
Transcribed Image Text:1. A tree contains a known percentage po of a radioactive substance with a half - life T. When the tree dies, the substance decays and isn't replaced. If the percentage of the substance in the fossilized remains of such a tree is found to be p1, how long has the tree been dead?
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