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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 47,841
Hi All, This is part solution, part request for peer review. I wasn't able to find a model for the motion of a...
Aug3-13 07:31 AM
mfb
3 861
for RF, how does this mechanism work? http://i.imgur.com/Crx4Amx.png how does the conductor do this? and why...
Jul31-13 10:45 AM
Enigman
9 853
Rusty on the math... I am working on a problem and need the derivation of a free fall trajectory for an object at...
Jul29-13 03:06 PM
Creator
8 695
I've been told (since high school I think) that "view angle" in a 2-dimensional plane is approximately (distance to...
Jul29-13 08:03 AM
Andy Resnick
6 1,370
The potential due to a polorized distribution is given by: V( \vec{r}) = \frac{1}{4 \pi \epsilon _{0}} \int _{V}...
Jul29-13 03:45 PM
DrDu
20 1,021
In this video at 7:15 you see a rifle fired underwater: cp5gdUHFGIQ Apparently even before the bullet leaves the...
Jul31-13 10:07 AM
A.T.
20 1,506
I am not sure I get the concept of centrifugal force.. If we have a stone tied to a thread and we just spin it in a...
Jul30-13 12:03 AM
DaleSpam
35 2,098
How to find the linear dispersion of a Direct Vision Prism with given parameters?
Jul29-13 10:46 PM
itsnaresh
0 338
Hi guys, After reading a paper about electron scattering, I became very interested. So if an electron is...
Jul30-13 10:02 PM
Simon Bridge
6 599
Hi All! I've been doing some research in an attempt to uncover the proportionality between usable traction, which is...
Jul29-13 06:08 PM
tduell
2 518
Hello everybody! I read that if one of the two materials involved in Snell's law is a conductor, the refraction angle...
Jul31-13 05:41 AM
EmilyRuck
10 908
Does any body here have any information about gravitational vortex power plant..?
Jul31-13 11:22 AM
Drakkith
7 749
Good afternoon all My question is, when we observe stationary waves, and we know that at a certain point, the sound...
Jul29-13 03:58 AM
Bobbywhy
1 647
How exactly would you describe the principle of a valve for flow control? In a globe valve for example the fluid...
Jul30-13 04:28 AM
gmax137
5 749
Hi all, I notice the patterns such as v = 0.5at^2 and PE(spring)=0.5kx^2, etc...but, all examples I have seen show...
Jul29-13 10:08 PM
PhanthomJay
4 453
I think everybody here knows the equation that gives the potential of a point like dipole, but how does the field look...
Jul30-13 02:03 AM
DrDu
1 385
What's the difference between cold moving air and hot moving air? For instance, suppose you put two fans, of the...
Aug1-13 11:18 AM
russ_watters
11 959
Hi All, I'm having a bit of trouble remember basic physics and hoping someone can help If i've got the wrong...
Jul29-13 08:50 PM
basil4j
0 387
Batters swear that batting gloves improve their performance. From a physics standpoint, why is this? My impression...
Jul29-13 10:09 PM
Simon Bridge
1 349
Hi PhysicsForums. I have a question. I was looking through a manual for an industrial grade PC, which is fanless,...
Jul30-13 02:31 AM
256bits
2 417
http://en.wikipedia.org/wiki/Gradient#Cylindrical_and_spherical_coordinates which formula do we apply to get the...
Jul31-13 06:37 AM
igorronaldo
4 537
The following are Maxwell's Relations right? \left(\frac{\partial s}{\partial v}\right)_{T} = \left(\frac{\partial...
Jul30-13 09:15 AM
jtbell
1 419
I am trying to study the motion of a falling body in the earth’s gravitational field however not assuming a constant...
Jul31-13 02:43 AM
rcgldr
10 542
Hello forum. I am finding it hard to wrap my mind around the concept of power when considering forces. We can...
Jul31-13 11:29 AM
Drakkith
3 674
So, I was wondering if a conducting loop was placed in orbit around the Earth would it be able to generate a current?
Jul30-13 10:24 PM
Simon Bridge
1 777
Hi all, Any ideas how to solve this integral? $$ \int_{0}^{\pi}...
Jul30-13 08:18 PM
klawlor419
2 490
I am a little confused about the Mermin-Wagner theorem, and the assumptions it makes, and I would like to better...
Aug3-13 08:54 PM
king vitamin
4 1,138
Trying to get my head around something with the Darcy Weisbach. It is used to calculate the head loss of a moving...
Jul31-13 06:57 PM
SteamKing
1 552
Good evening, I've been trying to wrap my head around this problem for some time and I just can't seem to get it...
Aug2-13 07:41 AM
MrsTMouse
7 948
Hi all, I have a simple circuit with a battery, resistor, and finally, the capacitor. Am I correct in saying...
Aug1-13 03:11 PM
technician
3 896
Please watch 05:00 to 08:00 http://www.youtube.com/watch?v=jbmFcGhTnS0 Force = Mass x Acceleration So for...
Aug1-13 08:13 AM
DaleSpam
30 1,853
I'm curious what models there are for calculating the Electric Susceptibility in crystalline solids and any books that...
Aug1-13 01:56 AM
DrDu
1 531
Newton's law of universal gravitation states that every point mass in the universe attracts every other point mass...
Aug3-13 06:36 AM
technician
14 1,604
Hi, After reading several resources about work and energy, I am confused about the conditions that should be...
Aug1-13 05:33 PM
Jano L.
1 796
I am wondering about why the electric field in a hollow sphere with charges on its surface would be zero. I have...
Aug4-13 12:43 AM
triphenylamine
13 1,749
So at my gym, there's a cable machine that works like this: You pull on one cable and you lift x mass using y force. ...
Aug2-13 04:56 AM
A.T.
1 642
When a positive point charge q is brought close to a neutral conducting spherical shell then negative charges will be...
Aug3-13 10:59 AM
vanhees71
4 518
I have a project to build a well insulated cylindrical vessel approx 220 cm in diameter and 125 cm in depth. Like a...
Aug3-13 01:39 AM
Terry998
0 424
I have so far encountered the notion 'state' in classical mechanics, thermodynamics and quantum mechanics. I have,...
Aug3-13 04:36 PM
Jolb
1 318
Hi does anybody here know whether there already exists a theory that describe Mie scattering for spheres that have...
Aug3-13 06:07 PM
mfb
5 386

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