A sample of ({ }^{131} mathrm{I}), half-life 8.0 days, is registering 100 decays per second. How long

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A sample of \({ }^{131} \mathrm{I}\), half-life 8.0 days, is registering 100 decays per second. How long will be it before the sample registers only 1 decay per second?

A. 8 days B. 53 days C. 80 days D. 800 days

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College Physics A Strategic Approach

ISBN: 9780321907240

3rd Edition

Authors: Randall D. Knight, Brian Jones, Stuart Field

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