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CHMM Final Exam Questions With 100% Correct Answers | Latest Update Graded A+ (2023/2024)
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CHMM Final Exam Questions With 100% Correct Answers | Latest Update Graded A+ (2023/2024). Cobalt-60 has a 5 year half life. If the initial activity of a Cobalt-60 source is 20 mCi, what is the activity after 10 years in mCi? a. 5 b. 0 c. 2 d. 10 - Answer a. 5 The exposure rate at a distance ...
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