Eliakat1987 Eliakat1987

13-07-2019
Physics

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It is noted that a sample of 134La with a half-life of 6.5 minutes has an activity of 2.6 Ci. What was its activity 72 minutes ago?

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curiousmuktar curiousmuktar

13-07-2019

Answer:

36//

Explanation:

(½)^t

(½)^72

72/2=36//

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