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OpenStudy (anonymous):
uppose that 8000 grams of an unknown radioactive substance decays to 1000 grams 9 days later. Determine the half-life of the radioactive substance. The radioactive substance has a half-life of__________ days
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OpenStudy (anonymous):
suppose
OpenStudy (anonymous):
it went through 3 halflifes in 9 days because 8000*(1/2)^3=1000, so half life is 3 days
OpenStudy (anonymous):
thanx
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