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M Radioactive Decay. Suppose the volume of a radioactive substance (in kg) follows the exponential decay model Q (t ) = Qe-kt If after 8

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Radioactive Decay. Suppose the volume of a radioactive substance (in kg) follows the exponential decay model Q (t ) = Qe-kt If after 8 years, the volume is 50% of its original size, what is the decay constant k? O 16 O -5.5451 O O -5.5452 None of the other answers 0 4 O 0.0867 O 0.0866

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