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accepted Constant Volume vs. Constant Pressure?
Jul
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accepted Computing the Poynting vector?
Jul
28
awarded  Commentator
Jul
28
comment Computing the Poynting vector?
It ended up being $S_z = -\frac{ c}{ \mu_0}(B_x^2 + B_y^2)$, a negative, and I do not understand why? How does the cross product work out... What I am I interpreting incorrect in the following: $\vec E = [c B_x, cB_y, 0], \vec B = [B_x, B_y, 0]$ and $\vec E \times \vec B = i(c B_y \cdot 0 - 0 \cdot B_y) - j(c B_x \cdot 0 - 0 \cdot B_x) + k(c B_x \cdot B_y - B_x \cdot B_y) = 0$ ?
Jul
28
comment Computing the Poynting vector?
How do I approach computing $E$, at $x = 0, y = 0, z = 0, t = 0$, wouldn't $B = B_x + B_y$, hence $E = c(B_x + B_y)$? (using this value doesn't give me the correct result)
Jul
28
revised Computing the Poynting vector?
added 2 characters in body
Jul
28
asked Computing the Poynting vector?
Jul
22
asked Constant Volume vs. Constant Pressure?
Jul
22
comment Double internal energy, how much will the entropy change?
Your answer definitely make way more sense!
Jul
22
revised Double internal energy, how much will the entropy change?
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Jul
22
comment Double internal energy, how much will the entropy change?
Also on the note of the $sigma$, the answer was given as $\sigma_{final} - \sigma_{initial} = 69.3$