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(Solved): By 1960 , almost 300 above-ground nuclear tests had been conducted worldwide. How much of the radio ...




By 1960 , almost 300 above-ground nuclear tests had been conducted worldwide. How much of the radioactive strontium-90 that w
By 1960 , almost 300 above-ground nuclear tests had been conducted worldwide. How much of the radioactive strontium-90 that was produced during these tests is still active in the environment after 60 years if Sr-90 has a half-life of 30 years? E \( 100 \% \)


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Radio active decay follows 1st order. We have relation Pe
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