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Mathematics, 21.11.2019 11:31 nisslove
The half-life of caesium-137 is about 30 years. how long will it take a sample of caesium-137 to decay to 33% of the original amount? round your answer to the nearest year.
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The half-life of caesium-137 is about 30 years. how long will it take a sample of caesium-137 to dec...
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