- #1
nkk2008
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Homework Statement
The problem has four very similar parts:
A)Rewrite the following vector equations as systems of differential equations:
[itex]\frac{q}{A}=-k \nabla T[/itex] (q is a vector) (spherical coordinates; k and A are constants)
B)Rewrite the following vector equations as systems of differential equations:
[itex]\nabla ^{2} T + \frac{a}{k}=0[/itex] (Cartesian coordiatnes; a and k are constants)
C)Solve the following diff eqs:
C1) [itex]q + \frac{k}{r} \frac{d}{dr}(r \frac{dT}{dr}) =0[/itex]
q and k are constant
Hint: integrate and use the constants of integration A and B
C2) [itex]\frac{d^{2}\varphi}{dx^{}2} + s \varphi =0[/itex]
Boundary conditions: [itex]\frac{d\phi}{dx}+0 @ x=0 ; \phi=c @ x= \pm L[/itex]
c,L are constant s is a positive constant.
Hint: use sin and cos functions
Homework Equations
None that I know of
The Attempt at a Solution
I do not have one. I am thouroughly confused. I am asking a TA tomorrow, but if someone could just nudge me in the right direction before that I would be appreciative. I know this is not terribly hard, but for some reason it is stopping me.
Thanks,
Nkk
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