The half-life of carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 67% of the carbon-14 expected in living matter, when did the tree die?
P = starting weight of the carbon-14
k = constant of exponential decay for carbon-14 - can be found by solving the first formula I gave.
t = time in years
Last edited by SlipEternal; Dec 6th 2017 at 10:46 AM.