In 1990, the remains of an apparently prehistoric man were found in a melting glacier in the Italian Alps. Analysis of the 14C content of samples of wood from his tools gave a decay rate of 8.0 dpm/g carbon. How long ago did the man die?
In 1990, the remains of an apparently prehistoric man were found in a melting glacier in the Italian Alps. Analysis of the 14C content of samples of wood from his tools gave a decay rate of 8.0 dpm/g carbon. How long ago did the man die?
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Transcribed Image Text:5. In 1990, the remains of an apparently prehistoric man were found in a melting
glacier in the Italian Alps. Analysis of the 1"C content of samples of wood from
his tools gave a decay rate of 8.0 dpm/g carbon. How long ago did the man
die?
6. It is believed that humans first arrived in the Western Hemisphere during the
last Ice Age, presumably by traveling over an exposed land bridge between
Siberia and Alaska. Archaeologists have estimated that this occurred about
11,000 yr ago, but some argue that recent discoveries in several sites in North
and South America suggest a much earlier arrival. Analysis of a sample of
charcoal from a fire in one such site gave a "C decay rate of 0.4 dpm/g of
carbon. What is the approximate age of the sample?
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