Math Problem Statement
Strontium 90 is a radioactive material that decays according to the function
A(t)=A0e^−0.0244t, where A0 is the initial amount present and A is the amount present at time t (in years). Assume that a scientist has a sample of 400 grams of strontium-90.
a) the decay rate of strontium-90 is __%
b)approximately ___ grams of strontium 90 is left after 10 years
c) Only 100 grams of strontium-90 will be left in about ___ years
d)The half-life of strontium-90 is approximately ___ years
round final answers to the nearest tenth as needed
(no steps just answer)
Solution
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Math Problem Analysis
Mathematical Concepts
Exponential Decay
Radioactive Decay
Formulas
A(t) = A0 * e^(-kt)
Theorems
-
Suitable Grade Level
Advanced High School or College
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