Provide an Appropriate Response

question 44

Multiple Choice

Provide an appropriate response.
-A toxic radioactive substance with a density of 3 milligrams per square centimeter is detected in the ventilating ducts of a nuclear processing building that was used 34 years ago. If the half-life of the
Substance is 10 years, what was the density of the substance when it was deposited 34 years ago?

• A)3.68 mg/cm2
• B)0.28 mg/cm2
• C)79.17 mg/cm2
• D)31.67 mg/cm2

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