Recent content by Tarabas

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    Electrostatic Potential Energy-related.

    Thanks a lot. I actually checked my textbook and it was nowhere. :D
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    Electrostatic Potential Energy-related.

    Homework Statement E=(1/4πε0)(Q/r^2) for R<r<2R Homework Equations U= integral (2R,R) ( (ε0 E^2)/2*4πr^2 dr The Attempt at a Solution I have no idea where the U-formula comes from. Any help would be appreciated. I added some pictures so that it could be easier to understand.
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    I have one question regarding Kinetic Energy

    Thnx. I got it. Now I'm laughing how I couldn't figure it out .
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    I have one question regarding Kinetic Energy

    The question is. There are two particles, one with charge -q and the other with charge Q, and -q particle rotates around the Q particle at a radius r1. What is the Energy at this point? The answer is like this: E= KE + U So now I know that U= -kQq/r1 But according to the answer: KE= kQq/2r1...
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    How is the Energy Calculated for Two Charged Particles in Orbit?

    Hi guys. I'm new here. The question is. There are two particles, one with charge -q and the other with charge Q, and -q particle rotates around the Q particle at a radius r1. What is the Energy at this point? The answer is like this: E= KE + U So now I know that U= -kQq/r1 But according to the...