A wooden boat plank from a prehistoric site has a carbon-14 activity of 5 counts per
minute (cpm). New wood has a carbon-14 activity of 40 cpm. Carbon-14 has a half-
life of 5730 years. What is the age of the wooden boat plank from the prehistoric
9
site?
A/
years
Answers: 1
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A wooden boat plank from a prehistoric site has a carbon-14 activity of 5 counts per
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