This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: triples in 100 years? 9. A radioactive substance with a half-life of 8 days is temporarily implanted in a hospital patient until 3/5 of the original amount remains. How long should the implant remain in the patient? 2 Separation of variables 1. solve y = ay by using the method of separation of variables. 2. solve y = 2 y + 5 by separation of variables. 3. solve y = 2 ty 2 4. solve y = y 3 .e t 5. solve y = e t-y with the initial condition that y (0) = 0 1 6. Newton’s law of cooling says that the temperature u ( t ) of an object satisﬁes u =-k ( u-T ) where T is the constant ambient temperature, and k is a positive constant. Find the temperature of the object at any time. 2...
View Full Document
This document was uploaded on 04/01/2011.
- Spring '09