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Physics
Physics
Problem
The half-life period of
C
14
\text{C}^{14}
C
14
is 5760 year. A piece of wood when buried in the earth had 1%
C
14
\text{C}^{14}
C
14
. Now as charcoal it has only 0.25%
C
14
\text{C}^{14}
C
14
. How long has the piece of wood been buried?
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