The half life for the decay of carbon-14 is 5.73 × 10’ years. Suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of wood from an archeological dig is measured to be 5.7 × 10° Bq. The activity in a similar-sized sample of fresh wood is measured to be 7.7 × 10° Bq. Calculate the age of the artifact. Round your answer to 2 significant digits. уears

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