Carbon 14 (c14) has half life of about 5730 years and it is used to date old objects made from plant material. If a wooden cup had 1000 grams of c14 when the tree cit ame from was cut how many grams would be present 1400 years later?

Question

Carbon 14 (c14) has half life of  about 5730 years and it is used to date old objects made from plant material. If a wooden cup had 1000 grams of  c14 when the tree cit ame from was cut how many grams would be present 1400 years later?

anonymous · Answer

please help

phi · Answer

f you start with amount N, and it decays with a half-life of x
use the formula
N(t)=  N e^(-ln(2)*t/x)

here x= 5730, t= 1400, N=1000 g