christinagideon801 christinagideon801
  • 13-10-2022
  • Physics
contestada

The half-life of cobalt-60 is 5.26 years. How many half-lives have passed in 10.52 years?
After 3 half-lives, how much of a 400 gram sample of radioactive uranium remains?
After 4 half-lives 10 grams of uranium remains. How much uranium did you start with?

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