A lab worker reports an activity of 80,000 counts/scounts/s for a sample of magnesium-21, whose half-life is 122 msms. Exactly 5.00 minmin later, another worker records an activity of 10 counts/mincounts/min on the same sample. What best accounts for this difference?
A lab worker reports an activity of 80,000 counts/scounts/s for a sample of magnesium-21, whose half-life is 122 msms. Exactly 5.00 minmin later, another worker records an activity of 10 counts/mincounts/min on the same sample. What best accounts for this difference?
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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A lab worker reports an activity of 80,000 counts/scounts/s for a sample of magnesium-21, whose half-life is 122 msms. Exactly 5.00 minmin later, another worker records an activity of 10 counts/mincounts/min on the same sample. What best accounts for this difference?
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