Mack
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 Jun15 awarded Popular Question Jun13 comment The role of 'arbitrary' in proofs I particularly like when you said "This just means we are not assuming anything about x..." That's an interesting idea. Jun13 asked The role of 'arbitrary' in proofs Jun7 awarded Notable Question May23 comment Fourier's Heat Law In Integral Form Why wouldn't we use Fourier's law to find the total heat flow? I used the Heat Equation (the PDE) to find the temperature distribution $T(x,t)$; then I was going to use Fourier's law to find the total heat flow. Isn't your final equation just the Heat Equation integrated over $x$? I still don't see how that would give the heat flow. May23 comment Fourier's Heat Law In Integral Form I'm sorry, but I do not quite see how I can determine the amount of heat that has flown from (or into) the rod during a certain time interval from the final equation.. Could you help me with that? May22 asked Fourier's Heat Law In Integral Form May4 awarded Popular Question Apr21 awarded Notable Question Apr8 awarded Popular Question Mar27 awarded Popular Question Mar24 awarded Popular Question Mar22 awarded Popular Question Mar21 awarded Popular Question Feb18 awarded Popular Question Feb15 awarded Tumbleweed Feb9 awarded Notable Question Feb8 comment Integrating With Respect To $x$ So, it would not be correct to use the differential of $y$, $dy = \frac{dy}{dx} dx$? Feb8 revised Integrating With Respect To $x$ added 8 characters in body Feb8 asked Integrating With Respect To $x$