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Chery Chery
wrote...
Posts: 3587
7 years ago
The activity of a sample reduces from 7.55 × 109 Bq to 5.11 × 109 Bq in 5.50 months.
(a) What is its half life?
(b) How many months from the start must one wait for the activity to decrease to 10% of its original value?
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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HotMathHotMath
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7 years ago
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Chery Author
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7 years ago
I needed this so much, thanks
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