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tankster tankster
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Posts: 851
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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 the half life?
(b)   How many months must one wait for the activity to decrease to 10%?
Textbook 
Physics

Physics


Edition: 4th
Author:
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longhairlonghair
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7 years ago
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tankster Author
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7 years ago
This calls for a celebration Person Raising Both Hands in Celebration
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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2 hours ago
Brilliant
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