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there are 500g of cobalt to 60 that has a half life of 5years ,how many grams of cobalt are remained after 15years

7 years ago

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Answered by Damon
Three half lives

500 * 1/2 * 1/2 * 1/2

= 500/8 grams
7 years ago
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there are 500g of cobalt to 60 that has a half life of 5years ,how many grams of cobalt are remained after 15years

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