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9 Nov 2019
A sample of radioactive material is initially found to have an activity of 146 decays/min. After 3 d, 19 n. its activity is measured to be 83 decays/min. Calculate the half-life of the material. Answer in units of h. How long (from the initial time) will it take for the sample to reach an activity level of 23 decays/min? Answer in units of d.
A sample of radioactive material is initially found to have an activity of 146 decays/min. After 3 d, 19 n. its activity is measured to be 83 decays/min. Calculate the half-life of the material. Answer in units of h. How long (from the initial time) will it take for the sample to reach an activity level of 23 decays/min? Answer in units of d.
Deanna HettingerLv2
20 Mar 2019