I Just Did a Cool Physics Problem

I was even going to upload it, but I decided that might have been overkill. I do my homework problems one at time on a whiteboard in my room. Once I have the problem figured out, I carefully transcribe my work onto a sheet of white copier paper. I have determined this to be the most perfect method of doing homework, becuase it’s easy to draw pictures on whiteboard, it’s easy to erase and correct mistakes, you don’t waste paper trying to figure out how to solve the problems, and the end result is something to be proud of – crisp diagrams, flawless math, and no ugly eraser marks.

If you were wondering, the problem was this:

A sphere of radius R contains Charge Q. Find the repulsive force between the ‘northern’ and ’southern’ hemispheres.

And the answer is (obviously): REDACTED

Update: Apparently I got the answer wrong on this problem.  That’s embarassing. Here is a correct solution.

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