A sample of 1000 radioactive atoms has a 10 minute half-life. How old is the sample when

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A sample of 1000 radioactive atoms has a 10 minute half-life.

How old is the sample when 750 atoms have decayed?

A. 10 minutes B. 15 minutes C. 20 minutes D. 30 minutes

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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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