Help with Electric Potential 2 Homework

AI Thread Summary
The discussion revolves around a homework question related to electric potential, where the user has completed the first part but struggles with the second. A suggestion is made to use integration by parts, emphasizing that this method differs for vector equations compared to scalar ones. Additionally, the use of Green's formula is recommended as an alternative approach. It is also advised to reference Maxwell's equations, particularly the one connecting charge density to the electric field. The conversation highlights the importance of understanding vector calculus in solving electric potential problems.
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Homework Statement



Hey guys.
Look at this question, I already did the first part.
I have no idea how to do the second one, even with the clue...

Can Someone please help me with that?
10x.

Homework Equations





The Attempt at a Solution

 

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Well, the HINT suggests using integration by parts, have you tried that?

You should note that integration by parts for vector equations is not the same as for scalar equations. If you're not familiar with using integration by parts on vector equations, it is also possible to use Green's formula.
 
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Also, you will probably find one of Maxwell's equations fairly useful... The one that relates charge density to electric field.
 

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