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Title: You obtain a new sample of cobalt-60, half-life 5.25 years, with a mass of 400 mg. How much ... Post by: Neves on Feb 6, 2017 You obtain a new sample of cobalt-60, half-life 5.25 years, with a mass of 400 mg. How much cobalt-60 remains after 15.75 years?
Title: Re: You obtain a new sample of cobalt-60, half-life 5.25 years, with a mass of 400 mg. How much ... Post by: Craft on Feb 6, 2017 Content hidden
Title: Re: You obtain a new sample of cobalt-60, half-life 5.25 years, with a mass of 400 mg. How much ... Post by: Neves on Apr 5, 2017 Thanks.
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