Jim measures the count rate of a sample of americium-241 as 120cpm. Roughly how long would it take for the count rate to fall below 4 cpm. Show your working

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asked Dec 20, 2021 84.6k views

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Jim measures the count rate of a sample of americium-241 as 120cpm. Roughly how long would it take for the count rate to fall below 4 cpm. Show your working

Physics
middle-school

Joe Hanink asked

by Joe Hanink

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Answer:

is that a negitive sign by 241

Step-by-step explanation:

Syed Ali answered Dec 26, 2021

by Syed Ali

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