Wepus Cutnell Physics 10e GENERAL PHYSICS PHY 166187 Gradele

Wepus Cutnell, Physics, 10e GENERAL PHYSICS (PHY 166/187) Gradelesk ORON Chapher 31, Chapber 31, Probiem 47 Examole 10 carbon-ha of carhon has an activity or 69 gMow per gram of carbon in a lving organiam s

Solution

ratio of N/N0= Observed Activity/(Activity per gram in living)=0.69/0.23=3 g

t=Halflife*ln2*ln(N/N0)

so t=T*ln2*ln(3)=5730*ln2*ln(3)=4363.39years