DJBunk

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I'm a physics grad student just trying to figure out all this stuff like everyone else.

	1,781 reputation	bio	website		visits	member for	1 year, 2 months
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Feb 22	comment	Electric Field inside a hollow ball, excentred of a homogeneous charged ball "... the field force.." Are you looking for the electric field, or a force the electric field exerts on some other object? Not to reprimand you but this is a common error students make - make sure you distinguish electric field and electric force. These are related but distinct concepts.
Feb 22	comment	Find work done by force along a path - is parameterization the only way? Is this a HW assignment? Or are you just curious about an alternative way of going about it?
Feb 21	answered	Strong interaction and the Lagrangian for electromagnetic interaction
Feb 20	comment	Electric field caused by magnetic field Are you asking if this is always the case, or for an example where this is the case?
Feb 18	revised	Electric field lines added 669 characters in body
Feb 18	comment	Electric field lines I don't understand your comment. Please elaborate.
Feb 18	answered	Electric field lines
Feb 18	comment	The direction of friction for a car wheel I am not sure what you mean by your first question. As for your second question - its static friction, like I said above. I tried to give an alternative explanation, I hope it helps.
Feb 18	revised	The direction of friction for a car wheel clarification
Feb 17	answered	The direction of friction for a car wheel
Feb 16	comment	Field energy of/from virtual Photons related: en.wikipedia.org/wiki/Virtual_particle
Feb 14	comment	Frequency Of Light You might want to divide this up into 2 questions, 1 for photons and frequency, and another for wave particle duality.
Feb 14	revised	Trilinear gauge couplings: Spin added 12 characters in body
Feb 14	revised	Trilinear gauge couplings: Spin added 18 characters in body
Feb 14	revised	Trilinear gauge couplings: Spin added 11 characters in body
Feb 14	comment	Trilinear gauge couplings: Spin I am only 90% sure about this, so please feel free to downvote. But PLEASE let me know where I am wrong with a comment.
Feb 14	answered	Trilinear gauge couplings: Spin
Feb 12	revised	Why use Fourier expansion in Quantum Field Theory? added 221 characters in body
Feb 12	answered	Why use Fourier expansion in Quantum Field Theory?
Feb 7	comment	How to explain independence of momentum and energy conservation in elementary terms? -1: Energy may or may not be conserved in relativistic systems just like nonrelativistic systems.