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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 47,001
So I'v been taught throughout highschool and now in college that a magnetic field has "lines of force". Also that they...
Feb2-10 11:17 AM
10 3,125
Can gravity be expressed in terms of the second law of thermodynamics?
Feb1-10 05:15 AM
1 2,340
Hi All When mixing water and oil, one produces an immiscible system of two liquid phases. Some cosmetic products for...
Feb3-10 04:30 PM
1 1,807
I have been using Born and Wolf's Principles of Optics for a project but I don't quite understand the concept of...
Feb2-10 06:54 AM
3 2,167
When a charged body is brought near an insulator, the side facing it acquires a charge of opposite sign because of...
Jan30-10 01:05 PM
5 5,130
The non-relativistic Larmor formula for the power radiated by a point charge is proportional to the charge’s...
Jan30-10 01:02 PM
4 1,649
In one of my undergrad books on physics is the example of a rail truck of mass M on a frictionless railroad moving at...
Feb1-10 10:05 AM
6 1,205
I am confused about the KE = 1/2mv2 I was able to get v2=2as from it, by removing mass from each side you get as =...
Jan30-10 10:15 AM
Doc Al
3 847
If we have a resonator composed of 2 partially transmitting mirrors/grids and we excite the resonator from one end,...
Jan30-10 06:07 AM
2 1,065
I am trying to get a "complete" picture of what happens in circuits. I know how to solve typical physics circuit...
Jan30-10 12:35 PM
0 1,912
Hi PFians I searched net for hours about understanding the concept of streamlines, streaklines and pathlines but I...
Jan30-10 11:14 AM
R Power
3 4,270
2 plane waves do 1 slit diffraction, one comes perpendicularly to the slit, the other with an angle theta. Rayleigh...
Jan30-10 11:06 AM
0 564
I'm working on trying to understand wave propagation. In particular, I'm trying to understand directional wave...
Jan31-10 10:17 AM
Andy Resnick
6 1,106
I have a problem with my train of thought. I have narrowed it down to several premises, and I think that one of...
Jan30-10 03:43 PM
5 1,245
Greetings, In Feynman's lectures - vol. 2 either chap 19, 21 or 23 - I think 23 (I'm at work and don't have the...
Feb2-10 05:02 AM
5 1,898
Hey guys, Im trying to derive the following equation (mc^2) +cos(theta)-=1 E1 = Incident Photon's energy E2...
Jan31-10 07:25 PM
3 896 hey theres a question here if you scroll down a...
Jan30-10 09:14 PM
1 542
I guess people who know can help. I know that the final formula should look like this: (OMEGA) = 4tan^(-1) , where...
Feb1-10 03:14 PM
1 626
hi, what happens, when I hand on a spring a heavy object and then we'll rotate the spring? I've tried to write down...
Jan31-10 09:17 AM
1 1,147
HI I was a under a little confusion about vector field. Consider velocity field of fluid flow: V = u i + v j...
Jan31-10 06:16 AM
R Power
2 2,073
Hi All, I'm not sure exactly what is considered classical physics. I always thought it was everything before...
Jan31-10 02:36 PM
2 1,540
Ok so i have the distance travelled of an object assuming air ressistance is 0 and the distance travelled with air...
Feb1-10 11:58 AM
Bob S
3 2,010
One postulate of sta mech is all accessible microstates are equally probable in thermal equilibrium, while according...
Jan31-10 08:14 AM
0 796
Hello! Can someone just guide me? I was calculating thermodynamic functions of some ions and a classmate showed me an...
Feb1-10 03:48 PM
0 3,489
I don't really know much about serious business electrostatics. I've only taken the AP Physics C E&M exam (using the...
Feb2-10 03:05 AM
1 1,729
OK, having some trouble wrapping my head around this so would appreciate some clarification. Let us say I had a...
Feb2-10 05:32 AM
Doc Al
4 1,013
Thinking in terms of the conservation of energy, it seems to make sense that if you took a relatively elastic rod with...
Feb2-10 04:18 AM
1 2,178
If my resonator is shorted at one end and has a partially transmitting grid at the other end is it correct to use S...
Feb2-10 08:56 AM
2 1,946
I could use a general discussion of magnetic helicity - beyond the Wikipedia blurb - its mathematical properties and...
Feb1-10 09:41 PM
0 639
we know that vector potential in a resonator satisfies the equation...
Feb2-10 06:50 AM
1 805
Hi..A disk A and disk b are rolling without slipping with same speed on a horizonal surface..Disc a rolls up an...
Feb3-10 12:37 PM
15 1,076
A 2.20 kg mass oscillates on a spring of force constant 250.0 N/m with a period of 0.615 s. Find the damping constant...
Feb2-10 04:55 PM
0 1,232
A 0.300 kg mass moving the end of a spring with force constant 2.50 N/m is acted on by a damping force F=-bv. If the...
Feb2-10 05:13 PM
0 759
Oh hello there! I have a question about the normal force! In my mechanics class we are CONSTANTLY told that the...
Feb3-10 07:17 PM
7 5,304
Hello, I have a question Lets say you have a container of water that weighs 10 pounds including the water/container...
Feb2-10 11:17 PM
1 753
For example, if one end of a rope is attached to a wall, and the other end is attached to the floor (at an angle), if...
Feb3-10 06:37 PM
5 1,727
Hello! Does anyone have a free ebook of Chemical Thermodynamic by Peter Rock A.?
Feb3-10 05:32 PM
10 2,656
I am checking through an essay on electromagnets and i think some sentences don't quite sound right. Maybe cos they...
Feb3-10 03:34 AM
0 1,019
I want to find the motion of an electron in a spatially varying magnetic field using finite element analysis, and have...
Feb3-10 10:01 PM
Bob S
3 2,466
I am confused on how a centrifuge separates particles by density. In wikipedia, it says it accomplishes this according...
Feb3-10 10:52 PM
4 1,025

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