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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 46,225
I've read in quite a few textbooks, chemistry and physics, that we can approximate a gas as many molecules which are...
Nov3-09 12:38 AM
31 5,430
I'm seeking help in understanding Kirchoff-Helmholtz Integral. Actually what i am facing the problem here is, i...
Nov2-09 11:25 PM
0 872
Is it possible to obtain a temperature lower than 0 K
Nov2-09 01:31 PM
27 2,430
How to calculate the shear rate for the flow of a shear thinning liquid in a non circular duct
Nov2-09 12:37 PM
2 801
how are weights distributed on a beam
Nov2-09 12:08 PM
1 700
Dear all, could please give my some links or references to material that justifies the mathematical and physical...
Nov2-09 12:05 PM
Andy Resnick
1 957
What is a tension force ??? Where does it originate from ??????
Nov2-09 09:00 AM
5 710
wHAT are the forces acting on a particle placed on a plate which is moving with an acceleration??
Nov2-09 08:52 AM
R Power
3 609
As stated in the question: I have PV(T) vs P plotted for 2 different temperatures. I'm to approximate the the...
Nov2-09 08:26 AM
7 5,255
whenever 2 bodies are in contact , why do they exert force normal to each other on each other , i mean the normal...
Nov2-09 08:25 AM
R Power
2 534
when you're done using an electric mixer, you can get most of the batter off the beaters by lifting them out of the...
Nov2-09 08:04 AM
1 721
In a turn, a rider might be leaning over at around 45 degrees at times. What is the g-force at that point going down...
Nov2-09 06:51 AM
4 959
Suppose you have an arbitrary waveform made up of different frequencies of light. In books the different frequencies...
Nov2-09 06:12 AM
2 716
Do magnets attract objects in a straight line? a.) magnet dipole - magnet dipole b.) magnet dipole - electric...
Nov1-09 10:22 PM
0 1,207
Suppose A box represents the universe. It also has a battery and a propellor inside it. The propellor is supposed to...
Nov1-09 08:26 PM
8 1,309
Consider the following cyclic process: Each cycle 800J of Energy is transfered from a reservoir at 800K and 600J of...
Nov1-09 04:22 PM
5 1,200
If I swing around a mass attached to a string, and then suddenly let go, the mass will fly off in a direction tangent...
Nov1-09 02:15 PM
9 1,015
Hi, I've been wonderring what happens to a substance once boiling point is reached, in particular the rate of...
Nov1-09 10:24 AM
Count Iblis
12 7,177
By "static" in this thread, I mean the charge and current density is constant in time (so things can be moving, but...
Nov1-09 01:30 AM
5 1,228
I recently read an article about Joseph Kittinger which stated that in a skydive, he was subjected to a G force of 22...
Oct31-09 08:53 PM
17 2,147
We find the equivalent resistance(let us denote it by R) of an infinitely long ladder circuit by considering that it...
Oct31-09 06:56 PM
3 4,220
Hey all, I have a lab coming up that deals with the emission spectra of H, He,Ne,Hg, and N_2 I am looking around...
Oct31-09 06:34 PM
3 925
Hm just having a little problem with this which should only take a second to check, trust me I have used the search...
Oct31-09 04:56 PM
Doc Al
10 1,517
I read that the centrifugal force acts radially outwards on a stone being revolved by a person with a string. But I...
Oct31-09 07:56 AM
41 3,134
Um, I suppose this is very basic but I just got kind of confused. Okay suppose you are standing and swinging a rope...
Oct31-09 05:40 AM
17 3,992
So just to verify (i'm not sure about this): The electric field inside a conductor is zero? the electric field...
Oct30-09 10:32 PM
1 881
When working out circuits problems, can we consider a voltmeter to read the difference in the scalar potential between...
Oct30-09 08:05 PM
4 2,497
I'm currently trying to look into the optics of extended sources. Google doesn't seem too helpful. Anyway, I have...
Oct30-09 07:32 PM
Andy Resnick
1 780
I know light is the fastest thing in the universe. But what about forces, namely gravity, magnetism, strong and weak...
Oct30-09 12:10 PM
67 8,227
Hi everyone Long time since i posted something. (May be i have posted at the wrong place, Doc Al...feel free to...
Oct30-09 08:55 AM
5 1,700
I implemented collisions with walls in my Java physics engine, complete with elasticity and friction, but I am not...
Oct30-09 08:00 AM
1 1,024
Ordinarily, a system of N particles in d dimensions has 2Nd constants of motion, but there are certain invariants,...
Oct30-09 04:45 AM
9 1,027
Hi, I have been trying to find the (causal) Green's function of \frac{\partial^2 \phi}{\partial t^2} +...
Oct29-09 11:50 PM
5 4,407
I don't understand why a rotating gyroscope whose rotation axis is inclined with respect to a vertical axis does not...
Oct29-09 09:11 PM
40 10,659
So I am doing a practical on the Zeeman effect, and have not been able to find an answer to the following: The...
Oct29-09 12:20 PM
0 1,037
I would like to find an equation to calculate the evaporate rates of water under a vacuum ranging from 26-28 inHg, a...
Oct29-09 01:50 AM
0 1,011
Hi, Could somebody pls give details on how extinction spectrum can be calculated. In several books I refered,...
Oct29-09 12:30 AM
0 6,417
So my professor has been kind of lazy lately. he goes through a lot of problems on the chalkboard half way till he...
Oct28-09 11:41 PM
2 739
I'm thinking about generalizations of Lagrangian mechanics to systems with infinitely many degrees of freedom, but...
Oct28-09 11:56 AM
1 2,491
The figure shows an insulating ring and an infinite straight wire resting on the surface of an infinite plane. The...
Oct28-09 11:17 AM
0 1,004

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