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Flux across a plane curve or Surface

Posted: 15/11-2006 21:36
by TurboN
Trenger litt hjelp :(

Find the outward flux of F across the boundary of D

Spherical cap F=-2xi -3yj+zk

D: The entire surface of the upper cap cut from the solid sphere x^2+y^2+z^2<=25 by the plane z = 3

Re: Flux across a plane curve or Surface

Posted: 17/11-2006 04:19
by Janhaa
TurboN wrote:Trenger litt hjelp :(

Find the outward flux of F across the boundary of D

Spherical cap F=-2xi -3yj+zk

D: The entire surface of the upper cap cut from the solid sphere x^2+y^2+z^2<=25 by the plane z = 3
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Har sett litt på oppgava,
er fasit:

-16 [symbol:pi] eller -240 [symbol:pi] eller -256 [symbol:pi] ?

Posted: 17/11-2006 13:02
by TurboN
Får oppgitt fasit til (2 [symbol:pi]/3)*(7-8*2^(1/2)