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Unformatted text preview: minutes). 2. Determine the basic principle to be used. The rate of change of the amount of salt in the tank is equal to the rate at which salt is entering minus the rate at which salt is exiting. Mathematically, 3. Write down the differential equation that describes the situation. (entering concentration) (entering flow rate) (exiting concentration) (exiting flow rate) dQ dt In this problem, 4. Now determine the initial condition. 5. We now have a firstorder linear initial value problem. (We should be getting to the point where we eat these for breakfast!)...
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 Spring '08
 FALCO

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