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The activity of the hair of an Egyptian ...

The activity of the hair of an Egyptian mummy is `7` disintegrations `minute^(-1)`. Find the age of mummy. Given `t_(1//2)` of `.^(14)C` is `5770` yearand disintegration rate of fresh sample of `.^(14)C` is `14` disintegrations `minute^(-1)`.

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`5770` years
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