|Feb13-13, 04:10 AM||#1|
Question about Newton's Law of Cooling
Newton's law of cooking
T(t)= Ta+(To-Ta ) e^(-kt)
or search it up online for a cleaner formula.
Anyways, what does the cooling constant k represent. What do larger or smaller values of k mean?
|Feb13-13, 10:54 AM||#2|
What do you mean by a "cleaner" formula? Are you working on a specific problem? Perhaps it doesn't need Newtons law of cooking to solve it?
Anyway scroll down..
k is a constant. Newton says the rate of change of the temperature of an object is proportional to the difference between its own temperature and the ambient temperature. "Proportional to" implies a constant...
dT/dt = -k(T-Ta)
k depends on the physical properties of the system... How well insulated it is, the heat capacity of the object etc
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