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During excavation work in a Cave in Wyoming an ancient wooden artifact was found. This artifact showed a C-14 decay rate of 4.2 counts per

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During excavation work in a Cave in Wyoming an ancient wooden artifact was found. This artifact showed a C-14 decay rate of 4.2 counts per gram of carbon. Assume the decay rate of C-14 in freshly cut down tree is 13.6 per minute per gram of carbon. The half-life of carbon is 5730 years. Calculate the age of this wooden artifact in years. (Write your answer without units including 1 decimal place)

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