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?

Answer 1

please help

Answer 2

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