The radioactive isotope, 14 6 C does not occur naturally but it is found at constant rate by the action of cosmic rays on the atmosphere. It is taken up by plants and animals and deposited in the body structure along with natural carbon, but this process stops at death. The charcoal from the fire pit of an ancient camp has an activity due to 146C of 12.9 disintegrations per minute, per gram of carbon. If the percentage of 146C compared with normal Carbon in living trees is 1.35 × 10−10%, the decay constant is 3.92 × 10−10 s−1 and the atomic weight = 12.0, what is the age of the campsite?
The radioactive isotope, 14 6 C does not occur naturally but it is found at constant rate by the action of cosmic rays on the atmosphere. It is taken up by plants and animals and deposited in the body structure along with natural carbon, but this process stops at death. The charcoal from the fire pit of an ancient camp has an activity due to 146C of 12.9 disintegrations per minute, per gram of carbon. If the percentage of 146C compared with normal Carbon in living trees is 1.35 × 10−10%, the decay constant is 3.92 × 10−10 s−1 and the atomic weight = 12.0, what is the age of the campsite?
Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter14: Nuclear Physics Applications
Section: Chapter Questions
Problem 35P
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The radioactive isotope, 14 6 C does not occur naturally but it is found at constant rate by the action of cosmic rays on the atmosphere. It is taken up by plants and animals and deposited in the body structure along with natural carbon, but this process stops at death. The charcoal from the fire pit of an ancient camp has an activity due to 146C of 12.9 disintegrations per minute, per gram of carbon. If the percentage of 146C compared with normal Carbon in living trees is 1.35 × 10−10%, the decay constant is 3.92 × 10−10 s−1 and the atomic weight = 12.0, what is the age of the campsite?
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