SOLUTION: How old is an artifact that contains 12.5 percent of its original carbon-14?
Algebra.Com
Question 481947: How old is an artifact that contains 12.5 percent of its original carbon-14?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
How old is an artifact that contains 12.5 percent of its original carbon-14?
:
The generally accepted value for the half-life of Carbon-14 is 5730 yr
:
Let t = time for 12.5% of the artifact to remain
Let the initial amt = 1
:
1*2^(-t/5730) = .125
use nat logs
ln(2) = ln(.125)
=
= -3
t = -3 * -5730
t = 17,190 yrs
RELATED QUESTIONS
A wooden artifact from an ancient tomb contains 35 percent of the carbon-14 that is... (answered by josgarithmetic)
A wooden artifact from an ancient tomb contains 35 percent of the carbon-14 that is... (answered by josgarithmetic,ikleyn)
A wooden artifact from an archaeological dig contains 80 percent of the Carbon-14 that is (answered by ankor@dixie-net.com)
An artifact was discovered by an archeologist, who initially estimated it to be about... (answered by Boreal,Theo,ikleyn,robertb)
an artifact was found and tested for its carbon-14 content. If 87% of the original... (answered by stanbon)
An artifact was found and tested for its carbon-14 content. If 82% of the original... (answered by ankor@dixie-net.com)
An artifact was found and tested for its carbon-14 content. If 79% of the original... (answered by stanbon)
An artifact was found and tested for its carbon-14 content. If 72% of the original... (answered by ankor@dixie-net.com)
An artifact was found and tested for its carbon-14 content. If 77% of the original... (answered by ankor@dixie-net.com)