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2. Assume that radium disintegrates/decomposes at a rate proportional to the amount present. If 100 mg reduces to 20% in 100 yrs., in how many milligrams will remain at the end of 1010 years? Find the half-life.

2. Assume that radium disintegrates/decomposes at a rate proportional to the amount present. If 100 mg reduces to 20% in 100 yrs., in how many milligrams will remain at the end of 1010 years? Find the half-life.

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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Representation of the unknown: DE Model: Solution: Final answer/s: Conclusion/s: Table:
Transcribed Image Text:Representation of the unknown: DE Model: Solution: Final answer/s: Conclusion/s: Table:
2. Assume that radium disintegrates/decomposes at a rate proportional to the amount present. If 100 mg reduces to 20% in 100 yrs., in how many milligrams will remain at the end of 1010 years? Find the half-life.
Transcribed Image Text:2. Assume that radium disintegrates/decomposes at a rate proportional to the amount present. If 100 mg reduces to 20% in 100 yrs., in how many milligrams will remain at the end of 1010 years? Find the half-life.
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