Mathematics, 07.10.2020 19:01 alexciamartinez05

In a nuclear test explosion, some strontium-90 is released. this substance has a half-life of 29 years. What part of strontium-90 remains after 60 years? plus the rate of decay of that element is 2.44% per annum

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In a nuclear test explosion, some strontium-90 is released. this substance has a half-life of 29 yea...

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