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Mathematics 12 Online
OpenStudy (anonymous):

The mass of a radioactive element decays at rate given by m(t) = m0e-rt, where m(t) is the mass at any time t, m0 is the initial mass, and r is the rate of decay. Uranium-240 has a rate of decay of .0491593745. What is the mass of U-240 left after 10 hours, if the initial mass is 50 grams? A) 28.54387 g B) 30.58254 g C) 32.14286 g D) 32.68034 g

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