SOLUTION: An accident in 1986 at the Chernobyl nuclear plant in Ukraine released a large amount of plutonium (Pu-239) into the atmosphere. The half-life of Pu-239 is about 24,110 years. Find

Question 1115542: An accident in 1986 at the Chernobyl nuclear plant in Ukraine released a large amount of plutonium (Pu-239) into the atmosphere. The half-life of Pu-239 is about 24,110 years. Find the decay constant. Use the function N(t)=Noe^-kt to find what remains of an initial 20 grams of Pu-239 after 5000 years. How long will it take for these 20 grams to decay to 1 gram?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
N(t)=Noe^-kt

Do it this way in pure text
N(t)=N[o]e^(-kt)

Reassigning variables for typewriting convenience:
, N for function and n for initial quantity

You were given half-life is 24110 years. This means ;

and

The original model,
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