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Northa Northa
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One mole of Strontium-90 is decaying with a half life of 28. years. After 61. years, how much Strontium is left and what is its activity?
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Physics

Physics


Edition: 4th
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Raj.SRaj.S
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7 years ago
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Northa Author
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7 years ago
Thanks
einstein
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Yesterday
Thanks for your help!!
ouasfoudgewu
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2 hours ago
Smart ... Thanks!
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