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A hazardous material was found to decay at a rate proportional to the amount present. Initially, there were 80 mg of this radioactive material that was present. After two hours, it has lost 40 percent of its original amount. Find the mass of the material after 4 hours.

A hazardous material was found to decay at a rate proportional to the amount present. Initially, there were 80 mg of this radioactive material that was present. After two hours, it has lost 40 percent of its original amount. Find the mass of the material after 4 hours.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question 6 Refer to the problem in question 5, what is the constant of proportionality? A -0.255 B -0.355 C) -0.455 D) -0.555
Transcribed Image Text:Question 6 Refer to the problem in question 5, what is the constant of proportionality? A -0.255 B -0.355 C) -0.455 D) -0.555
A hazardous material was found to decay at a rate proportional to the amount present. Initially, there were 80 mg of this radioactive material that was present. After two hours, it has lost 40 percent of its original amount. Find the mass of the material after 4 hours.
Transcribed Image Text:A hazardous material was found to decay at a rate proportional to the amount present. Initially, there were 80 mg of this radioactive material that was present. After two hours, it has lost 40 percent of its original amount. Find the mass of the material after 4 hours.
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