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Mathematics, 21.01.2020 19:31 barnhill6515
(radioactivity) the half-life of radioactive cobalt is 5.3 years. after a nuclear reactor accident, the surrounding region had 100 times the amount of cobalt acceptable for habitation. how long will it be before the region is habitable?
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(radioactivity) the half-life of radioactive cobalt is 5.3 years. after a nuclear reactor accident,...
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