Half Life of Plutonium 241 Question: How much of a sample weighing 4g will remain...

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letsallpray

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...after 100 year? (A(t) to the base of 0 time the e on the calculator raised to the -0.053t)
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Plutonium 241 ; A(t)sub0(e)^-0.053t

Half Life: The half-life of plutonium 241 is approximetly 13 years.

How much of a sample weighing 4g will remain after 100 years?

How much time is necessary for a sample weighing 4g to decay to 0.1g?
 
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