3. A certain radioactive material is known to decay at a rate proportional to the amount present. If initially there is 50 mg of the material present and after 2 hours it is observed that the material lost 20% of its original mass, a) find the mass of the material after 5 minutes, and b) the time at which the material has decayed to one-half of its initial mass.
3. A certain radioactive material is known to decay at a rate proportional to the amount present. If initially there is 50 mg of the material present and after 2 hours it is observed that the material lost 20% of its original mass, a) find the mass of the material after 5 minutes, and b) the time at which the material has decayed to one-half of its initial mass.
Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter4: Temperature Effects On Atom Arrangements And Atom Motion
Section: Chapter Questions
Problem 4.21P
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