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dt 7. Radium-223 has a half-life of 11.4 days. Find the decay rate a. Starting with a sample of 100 kg, how long will it take until only 20 kg are left?

dt 7. Radium-223 has a half-life of 11.4 days. Find the decay rate a. Starting with a sample of 100 kg, how long will it take until only 20 kg are left?

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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dy dt 6. -y+e-t cos(t), y(0) = 2. 7. Radium-223 has a half-life of 11.4 days. Find the decay rate a. Starting with a sample of 100 kg, how long will it take until only 20 kg are left? 8. Consider a savings account with an interest rate of a = 01 Assume that a constant.
Transcribed Image Text:dy dt 6. -y+e-t cos(t), y(0) = 2. 7. Radium-223 has a half-life of 11.4 days. Find the decay rate a. Starting with a sample of 100 kg, how long will it take until only 20 kg are left? 8. Consider a savings account with an interest rate of a = 01 Assume that a constant.
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