#Stoke's Theorem help

16 messages · Page 1 of 1 (latest)

tight pelican
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Question: Given the vector field F(r) = y e_x + z^2 e_z. Use Stoke's Theorem to compute the flux of ∇ x F through the hemisphere of radius R centered at the origin, with z ≥ 0. Orient the hemisphere with the normal pointing downards.

The image I've provided is a rough working. I am not sure if the flux is the sum of the hemisphere's flux and the circular base's flux.

solemn mothBOT
willow dome
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Stokes theorem would show that they are equal. So it would be pointless to calculate both

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@tight pelican

tight pelican
# willow dome <@1197912304348577813>

Yeah, thank you. I calculated the line integral with the boundary being the circle. I also calculated the surface integral using the domain of the hemisphere. I got both results being equal.

willow dome
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As you should

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The surface integral over the base may have been easier tho

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But I'm just guessing

tight pelican
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I found the surface integral easier to do tbh

willow dome
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Sometimes it is

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Line integrals suck

tight pelican
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Yeah they do

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Annoying you sometimes gotta break it into parts

willow dome
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Vector calculus is always a lot of work

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But tensor calculus will be even more work