For Exercises 23-24, refer to the model Q t = Q 0 e − 0.000121 t used in Example 5 for radiocarbon dating. At the "Marmes Manâ€� archeological site in southeastern Washington State, scientists uncovered the oldest human remains yet to be found in Washington State. A sample from a human bone taken from the site showed that 29.4 % of the carbon-14 still remained. How old is the sample? Round to the nearest year.
For Exercises 23-24, refer to the model Q t = Q 0 e − 0.000121 t used in Example 5 for radiocarbon dating. At the "Marmes Manâ€� archeological site in southeastern Washington State, scientists uncovered the oldest human remains yet to be found in Washington State. A sample from a human bone taken from the site showed that 29.4 % of the carbon-14 still remained. How old is the sample? Round to the nearest year.
Solution Summary: The author calculates the age of a human bone sample taken from an uncovered human body found at the "Marmes Man" archeological site in southeastern Washington State by using the model equation Q(t
For Exercises 23-24, refer to the model
Q
t
=
Q
0
e
−
0.000121
t
used in Example 5 for radiocarbon dating.
At the "Marmes Man� archeological site in southeastern Washington State, scientists uncovered the oldest human remains yet to be found in Washington State. A sample from a human bone taken from the site showed that
29.4
%
of the carbon-14 still remained. How old is the sample? Round to the nearest year.
How old is a skeleton that has lost
41%
of its carbon-14? The decay rate, k, of carbon-14 is
0.01205%
per year
Lead-210 has a half-life of 22.3 years.
a) How much of a 102-mg sample would be remaining after 7 years?
b) If the half-life were shorter than 22.3 years, would you expect more or less to remain after 7 years?
For Exercise, refer to the model Q(t)=Q0e-0.000121t
A sample from a mummified bull was taken from a pyramid in Dashur, Egypt. The sample shows that 78% of the carbon-14 still remains. How old is the sample? Round to the nearest year.
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