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Differential Equations
Differential Equations
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Page (10 of 15) Exercises:   1    2    3    4    5    6    7    8    9    10    11    12    13    14    15  
Exercise 10

A hot cup of coffee is placed on the kitchen table in a room that is 68°F. Newton's Law of Cooling (link forward) says that the temperature t of the coffee will decrease at a rate proportional to the difference between the temperature of the surrounding room and the temperature of the coffee. This situation can be modeled by the differential equation

Is the constant k positive or negative?


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