Before someone puts it on 'hold' , this is not a homework question, I doubt you'll find it somewhere as I thought of it. I wish to find force of electrostatic attraction between 2 uniform rings of equal charge and radii. I can not find a solution to this without going to the integral of a 3D angle which is beyond my power. I do not wish a calculated answer, just an approach
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I want to know what happens to the space a black hole crosses over as our galaxy travels through space.
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