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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
ZapperZ
1 47,836
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
Jhenrique
8 556
Why others vector fields no are studied like the magnetic and electric fields? In other words, why others vector...
Jun12-14 10:37 PM
Jhenrique
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
rigetFrog
1 241
I don't know how to integrate the Maxwell-Boltzmann distribution without approximation or help from Maple. Given...
Jun12-14 02:23 PM
TeslaPow
11 385
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
ramanakumars
5 273
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
vanhees71
3 262
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
dauto
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
UltrafastPED
1 203
Hello, Can someone explain what's going on in equations 196 and 197:...
Jun11-14 08:12 PM
pierce15
4 229
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
Jhenrique
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
stevendaryl
33 1,150
I'm trying solve this scheme: http://www.physicsforums.com/attachment.php?attachmentid=70441&stc=1&d=1402248289 ...
Jun11-14 08:44 AM
Born2bwire
7 286
This is not a homework question. Whilst looking over at previous exam papers on classical physics, I came across...
Jun11-14 04:44 AM
Adithyan
3 203
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
diffusegrey
4 288
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
UltrafastPED
1 195
Hello. I've got a question. If we've got a fourie-transformation of charged particle field, ...
Jun10-14 03:11 PM
sukharef
0 155
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
D H
15 482
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
Drakkith
13 341
Is possible to associate voltage sources and current sources by a delta scheme or by star scheme?
Jun10-14 03:44 AM
Jhenrique
0 177
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
Jilang
17 421
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
2 215
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
hamza201195
3 203
When: - Vacuum had an absolute mass, relatively limiting expension of all universal matter - Newton's second law...
Jun9-14 06:03 PM
micromass
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
2 193
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
UltrafastPED
5 342
The equation for this physical model is: http://upload.wikimedia.org/wikipedia/commons/f/fb/RLC_series_circuit_v1.svg...
Jun9-14 09:24 AM
Born2bwire
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
DrClaude
2 239
How would be the 2nd Kirchhoff's law for this circuit here: ...
Jun9-14 08:25 AM
CWatters
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
18 441
A ideial voltage source has: v = v i = ? R = 0 L = ? C = ? ideal current source: v = ? i = i
Jun9-14 06:16 AM
Nick O
14 284
How equate the voltage/current of the associated sources with the voltage/current equivalent? ...
Jun9-14 05:26 AM
Jhenrique
14 303
This is sort of statics, but this came up in my physics class before. You have a plate, supported only in the...
Jun9-14 12:40 AM
Simon Bridge
3 201
I am reading introductory physics from Serway. Where they say if a_r is radial acceleration and a_c is centripetal...
Jun9-14 12:33 AM
D H
3 268
If invisid flow starts with no vorticity then no vorticity will be produced. This can be understood intuitively: we...
Jun8-14 11:31 PM
boneh3ad
3 224
The concept of a problem is that if rockets continue to jettison fuel, at some point they will get a very small...
Jun8-14 08:13 PM
M-Speezy
8 308
If we know the initial momentum of particles a and b (mass a and b, initial velocity of a and b), is it possible...
Jun8-14 06:14 PM
mathman
2 149
All the derivations of the Rayleigh-Jeans 'Law' I've seen assume that the electromagnetic radiation is enclosed in a...
Jun8-14 05:51 PM
Jano L.
8 310
If a battery has 6V of voltage, this means that P+ P = 6V or that P P+ = 6V ? Being: P+ = electric potential...
Jun8-14 04:03 PM
UltrafastPED
7 229
What's the mechanism behind things like sparks, lightning, St. Elmo's fire, etc.? I've heard two different...
Jun8-14 01:28 PM
ZapperZ
2 223
How does friction come about using the four forces?
Jun8-14 10:49 AM
adjacent
3 214

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