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Cobalt- 60 , with a half-life of 5.3 years, has a number of applications, including medical therapy and the sterilization of medical tools. How many

Cobalt- 60 , with a half-life of 5.3 years, has a number of applications, including medical therapy and the sterilization of medical tools. How many months would it take for a sample of 700g to decay to only 293g ?

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