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AP® Physics 1 & 2

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Half-life

APPH12-Q4JEJR

Much to your surprise, you discover a radioactive sample in your backyard that was previously unknown to science. The sample decays relatively quickly. You frantically try to study it, but 6 hours later the sample has decayed in number by a factor of 1000.

What is the half-life of this mysterious sample?

A

3 hours

B

6 hours

C

0.6 hours

D

0.87 hours