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Dec
25
revised How do I find the average kinetic energy and average potential energy of a hydrogen electron in the ground state?
added 6 characters in body
Dec
24
revised How do I find the average kinetic energy and average potential energy of a hydrogen electron in the ground state?
added 35 characters in body
Dec
24
answered How do I find the average kinetic energy and average potential energy of a hydrogen electron in the ground state?
Dec
20
revised How to calculate the magnetic flux through a circular area
added 228 characters in body
Dec
20
answered How to calculate the magnetic flux through a circular area
Dec
18
revised Gradient of vector dot tensor dot vector
added 41 characters in body
Dec
18
revised Gradient of vector dot tensor dot vector
added 225 characters in body
Dec
18
answered Gradient of vector dot tensor dot vector
Dec
6
answered How is it possible to pull out derivatives of a wavefunction?
Aug
31
answered Gravitational force acting on two particles
Aug
31
answered Where does the energy go when you stretch a rubber band?
Aug
29
comment Poisson brackets and magnetic field
Can someone elaborate on why this is off-topic? @jl2 "ask[ed] about a specific physics concept" and "show[ed] some effort to work through the problem," no? I think he got 90% of the way there and just needed some pointers on the Levi-Cevita symbol, like he said. I guess I could have stopped a few steps short in my answer, letting him finish it? Even still, that would be regarding my answer, not his question.
Aug
28
answered Poisson brackets and magnetic field
Aug
9
comment Projectile, air resistance and wind
You might find this answer to another question useful: physics.stackexchange.com/questions/134147/…
Aug
3
comment Moment of inertia of uniform solid sphere
That's true @AritraDas.
Aug
1
comment Moment of inertia of uniform solid sphere
I know what you mean @AritraDas, though OP is able to avoid the volume integral because he uses the moment of inertia of a cylinder. If you want to calculate the moment of inertia of a cylinder, you have to do a double integral.
Aug
1
answered Moment of inertia of uniform solid sphere
Jul
24
revised Understanding speed distributions: Average speed, RMS speed from a graph?
edited body
Jul
24
answered Understanding speed distributions: Average speed, RMS speed from a graph?