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Q6: A fission reactor accident evaporates 5 x 106 Ci of 90Sr (T1/2= 27.7 yr) into the air. The 90Sr falls out over an area of 104 km?. How long will it take the activity of the 90Sr to reach the agriculturally "safe" level of 2 uCi/m2.

Q6: A fission reactor accident evaporates 5 x 106 Ci of 90Sr (T1/2= 27.7 yr) into the air. The 90Sr falls out over an area of 104 km?. How long will it take the activity of the 90Sr to reach the agriculturally "safe" level of 2 uCi/m2.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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(9 Marks) Q6: A fission reactor accident evaporates 5 x 10° Ci of "Sr (T/2=27.7 yr) into the air. The 90Sr falls out over an area of 104 km?. How long will it take the activity of the 90Sr to reach the agriculturally "safe" level of 2 uCi/m2.
Transcribed Image Text:(9 Marks) Q6: A fission reactor accident evaporates 5 x 10° Ci of "Sr (T/2=27.7 yr) into the air. The 90Sr falls out over an area of 104 km?. How long will it take the activity of the 90Sr to reach the agriculturally "safe" level of 2 uCi/m2.
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