Use the Fact That the Quantity of a Radioactive Substance

question 216

Multiple Choice

Use the fact that the quantity of a radioactive substance after t years is given by , where is the original amount of radioactive material and k is its half-life (the number of years it takes for half the radioactive substance to decay) . The half-life of carbon-14 is 5,600 years. Find the amount of carbon-14 remaining after 8,000 years if . Round your answer to four decimal places if required.
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• A)24.9307 g
• B)65.7924 g
• C)0.0019 g
• D)15.0457 g
• E)20.25 g

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