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Classical Physics

- Principles developed before the rise of relativity and quantum mechanics. Mechanics, Electrodynamics, Thermodynamics, Optics...
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Jan16-12 Greg Bernhardt
Before posting anything, please review the Physics Forums Global Guidelines. Again, for some odd reason, people...
Apr22-11 05:26 AM
1 47,867
Hello everyone! I was reading the following review: ...
Jun15-14 08:47 PM
6 536
The derivation of Planck's law in my textbook begins with the assumption that the energy of an oscillator with...
Jun15-14 07:33 PM
Andrew Mason
1 219
Hi, The focal length of the Plano-Convex lens as calculated by the lens maker equation: Does it work when light...
Jun15-14 04:18 PM
2 277
I'm having trouble with this line from Goldstein-"the center of mass moves as if the total external force were acting...
Jun14-14 08:51 PM
4 285
Hello friends, Referring to the attachment it can be clearly understood that flow work in an open...
Jun14-14 07:07 PM
5 348
1st) Can you think in the reciprocal of the memristance? Can you give me a theoretical definition (or just a notion)...
Jun14-14 06:52 PM
2 243
See: Is possible to express the...
Jun14-14 05:34 PM
Greg Bernhardt
1 228
I'm having trouble getting my head around entropy. In an isolated system, entropy can only remain the same or...
Jun14-14 01:23 PM
2 260
According to wikipedia, "The moving magnet and conductor problem", I stopped at the equation shown in the attachment....
Jun14-14 09:50 AM
5 270
We know that for constant pressure thermodynamic processes which only expansion work is possible, dH=dQp. My question...
Jun13-14 08:50 AM
Andrew Mason
12 398
It is well known that the evolution of the input reflection coefficient, ρ, of a LTI causal passive system with...
Jun13-14 02:17 AM
4 560
I know what is circulation by a mathematical point of view, but in the reality (in the physical world), what is...
Jun12-14 10:54 PM
8 557
Why others vector fields no are studied like the magnetic and electric fields? In other words, why others vector...
Jun12-14 10:37 PM
5 237
How do you write out the potential of an ion in a Penning trap? Specifically, how does the inter-ionic Coulomb...
Jun12-14 08:02 PM
1 242
I don't know how to integrate the Maxwell-Boltzmann distribution without approximation or help from Maple. Given...
Jun12-14 02:23 PM
11 389
Hi everyone, If you have a horizontal circular motion (with gravity action on the object), what holds the object up...
Jun12-14 08:09 AM
5 276
For an infinite plane sheet of charge it is obvious that the E-field points directly perpendicular to the sheet. but...
Jun12-14 07:17 AM
3 264
Is it to identify something (not necessarily very accurately but at all) with sound? Also, i know its possible with...
Jun11-14 11:48 PM
11 291
There is a book with very briefly theory, showing the essentials for make the exercices of electrodynamics, and also...
Jun11-14 08:34 PM
1 204
Hello, Can someone explain what's going on in equations 196 and 197:...
Jun11-14 08:12 PM
4 230
When a circuit is being alimented by AC this means that exist in the circuit a voltage source that is generating the...
Jun11-14 06:57 PM
6 286
Hello everyone, it's been a while since I've been introduced to Newton's laws for the first time. Yesterday I've been...
Jun11-14 12:16 PM
33 1,153
I'm trying solve this scheme: ...
Jun11-14 08:44 AM
7 287
This is not a homework question. Whilst looking over at previous exam papers on classical physics, I came across...
Jun11-14 04:44 AM
3 205
So, I'm trying to study phase shift in an unbalanced rotating system (where "phase shift" means the resulting response...
Jun10-14 10:21 PM
4 293
When a object of mass non insignificant is traveling in space and is sob influence of one gravitational field, the...
Jun10-14 07:08 PM
1 195
Hello. I've got a question. If we've got a fourie-transformation of charged particle field, ...
Jun10-14 03:11 PM
0 156
As we all know, if a car happens to be struck by lightning its passengers will probably be safe. The usual explanation...
Jun10-14 11:27 AM
15 484
This question is a variation on another question I asked recently. Suppose you were in a box made from a perfectly...
Jun10-14 04:25 AM
13 344
Is possible to associate voltage sources and current sources by a delta scheme or by star scheme?
Jun10-14 03:44 AM
0 178
Question:- A block of mass 10 kg moving with a velocity of 1 m/s collides with a spring of force constant 1000 N/m....
Jun10-14 03:01 AM
17 423
I'll assume that we all know of 1st, 2nd and 3rd Class Levers. Years ago I saw a brief remark in a magazine that I...
Jun9-14 11:53 PM
Saxon Violence
2 216
I have read that in a charged conductor, all the charge is located at the surface of the conductor and the Electric...
Jun9-14 11:22 PM
3 204
When: - Vacuum had an absolute mass, relatively limiting expension of all universal matter - Newton's second law...
Jun9-14 06:03 PM
3 223
Hi, My question is how do do laser interferometers measure distances of more than one wavelength? I know they rely...
Jun9-14 02:00 PM
Andy Resnick
2 194
Hi all, Here is the derivation of kinetic energy from Work: W = ∫Fds From the second law of motion F =...
Jun9-14 01:32 PM
5 343
The equation for this physical model is:
Jun9-14 09:24 AM
1 217
I'm developing a classical model of a dipolar ion in an external electric field. It consists of two charges...
Jun9-14 09:21 AM
2 244
How would be the 2nd Kirchhoff's law for this circuit here: ...
Jun9-14 08:25 AM
8 284
If in a typical complete circuit (RLC) we have a resistor with resistence R, an inductor with inductance L and a...
Jun9-14 08:00 AM
Simon Bridge
18 443

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