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Learning from scratch


Apr
6
revised About the complex nature of the wave function?
edited title
Apr
5
comment How to explain independence of momentum and energy conservation in elementary terms?
@englishphysics KE is conserved in a way but not in the system that the problem focuses on. If you look at just the system of the two balls, it is not conserved. However the whole balls colliding thing is an open system which can exchange energy with its environment so the KE of the balls will be transferred as KE in the faster jiggling of nearby air molecules,as heat.. if you think that is too obtuse or confusing for a 16 year old then you're really underestimating them.
Apr
5
comment About the complex nature of the wave function?
removed the images.
Apr
5
revised About the complex nature of the wave function?
added 6 characters in body; added 94 characters in body
Apr
5
comment About the complex nature of the wave function?
I edited my question removing the reprints and trying to state my problem without them.. it will take some time to think about some points you made in the answer already, though.
Apr
5
revised About the complex nature of the wave function?
deleted 237 characters in body; deleted 146 characters in body
Apr
5
comment About the complex nature of the wave function?
thanks for answering. I have one question, not knowing about Feynman path integrals yet, I take it that what you are saying is the same thing as: if we make the transformation $\psi(r,t) = e^{i\frac{S(r,t)}{\hbar}}$ then the Schrodinger equation reduces to the classical hamilton Jacobi equations (if terms containing $i$ and $\hbar$ were negligible)?
Apr
5
revised About the complex nature of the wave function?
added 172 characters in body
Apr
5
asked About the complex nature of the wave function?
Apr
4
answered How to explain independence of momentum and energy conservation in elementary terms?
Apr
3
comment A circuit with no voltage difference, but current flowing
@David Great answer+1 @Casebash, just to put David's figures in perspective, here's what current to a few orders of mA can do to you allaboutcircuits.com/vol_1/chpt_3/4.html
Apr
1
comment Online physics collaboration tools
dear pcr, you forgot a factor of $\frac{1}{\sqrt{3}}$ in the first line.
Apr
1
accepted Why is a classical formalism necessary for quantum mechanics?
Mar
30
awarded  Teacher
Mar
30
revised Online physics collaboration tools
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Mar
30
revised Online physics collaboration tools
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Mar
30
answered Online physics collaboration tools
Mar
30
awarded  Critic
Mar
30
asked Why is a classical formalism necessary for quantum mechanics?
Mar
27
revised In Method of images type problems, why isn't the induced charge taken into account while solving it via Green's functions?
added 205 characters in body; edited title