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The burial cloth of an Egyptian mummy is estimated to contain 58% of the carbon-14 it contained originally. Ho?
The burial cloth of an Egyptian mummy is estimated to contain 58% of the carbon-14 it contained originally. How long ago was the mummy buried? (The half-life of carbon-14 is 5730 years. Round your answer to the nearest ten years.) please give the answer in years
1 Answer
- NickLv 68 years ago
We need to find the rate of decay (r) first:
A=pe^(rt)
.5=(1)e^(5730r)
.5=e^(5730r)
ln.5=ln(e^(5730r))
ln.5=5730r
r=(ln.5)/5730
r=-.000120968
A=pe^(rt)
.58=(1)e^(-.000120968t)
.58=e^(-.000120968t)
ln.58=lne^(-.000120968t)
ln.58=-.000120968t
t=(-ln.58)/.000120968
t=4503
t=4500
