19. At present, a radioactive beta source with a long halflife has an activity of 20...
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19. • At present, a radioactive beta source with a long halflife has an activity of 20 mCi.
(a) What is the present decay rate in decays per second?
(b) Assuming that one beta particle is emitted per decay, how many are emitted per minute?
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Related Book For 
College Physics Essentials Electricity And Magnetism Optics Modern Physics Volume Two
ISBN: 9781032337272
8th Edition
Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
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