MyNewPony
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Homework Statement
Your lab assignment is to use positive charge Q to launch a proton, starting from rest, so that it acquires the maximum possible speed. You can launch the proton from the surface of a sphere of positive charge Q and radius R, or from the center of a ring of charge Q and radius R, or from the center of a disk of charge Q and radius R.
a) We will choose to launch the proton from the surface of a sphere of positive charge Q and radius R.
b) We will choose to launch the proton from the center of a ring of charge Q and radius R.
c) We will choose to launch the proton from the center of a disk of charge Q and radius R.2. The attempt at a solution
I have no idea how to go about solving this. I'm assuming a) is the correct answer because it has the greatest surface area?
