Hart Cross
09/09/2023 · Senior High School
The radioactive substance uranium-240 has a half-life of 14 hours. The amount \( A(t) \) of a sample of uranium-240 remaining (in grams) after \( t \) hours is given by the following exponential function. \( A(t)=3900\left(\frac{1}{2}\right)^{\frac{t}{14}} \) Find the initial amount in the sample and the amount remaining after 60 hours. Round your answers to the nearest gram as necessary. Initial amount: Amount after 60 hours: \( \square \) grams
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Initial amount: 3900 grams, Amount after 60 hours: 200 grams
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