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Algebraic! Group TitleBest ResponseYou've already chosen the best response.0
what are r and sigma representing.
 2 years ago

Carl_Pham Group TitleBest ResponseYou've already chosen the best response.0
r is probably the vector from the origin to any point on the surface, and sigma is probably the unit vector normal to the surface at that point.
 2 years ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.0
@CliffSedge can you help me please
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
Been too long since I've done integrals like these. I'll have to refresh my memory first.
 2 years ago

Jemurray3 Group TitleBest ResponseYou've already chosen the best response.0
dw:1350687107096:dw
 2 years ago

Jemurray3 Group TitleBest ResponseYou've already chosen the best response.0
dw:1350687145672:dw
 2 years ago

Jemurray3 Group TitleBest ResponseYou've already chosen the best response.0
So when it says that \[ \vec{r}\cdot d\vec{\sigma}=0 \] for three of the surfaces, can you see which three this pertains to and why?
 2 years ago

Jemurray3 Group TitleBest ResponseYou've already chosen the best response.0
when, in general, is a dot product zero?
 2 years ago
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