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Classical Physics

- Principles developed before the rise of relativity and quantum mechanics. Mechanics, Electrodynamics, Thermodynamics, Optics...
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Before posting anything, please review the Physics Forums Global Guidelines. Again, for some odd reason, people...
Apr22-11 05:26 AM
ZapperZ
1 41,678
There is statements that pulsed microwaves could cause buzzing and clicking sensations in the head.Even words could...
Aug12-12 05:33 PM
Stanley514
0 588
For a charged metal sphere of charge "+q" is the following statement true ? all the excess charge is in static...
Aug12-12 04:37 PM
tiny-tim
3 922
I don't quite grasp this statement : Open attachment to view the image of whats going on The field from a...
Aug12-12 04:12 PM
mikeph
1 377
Today I did the usual thinking, watched some courses online etc. and found out(or rather reminded myself) that the EM...
Aug12-12 04:06 PM
mikeph
10 1,204
I need to find out the temperature change of air going through a chilled copper tube. The air will be traveling...
Aug12-12 02:43 PM
tilopa
0 428
I'm taking Statistical Mechanics this semester. I already took Thermodynamics, covering the first three laws (0,1,2)...
Aug12-12 01:40 PM
JRPB
2 1,173
object is the shape of a ball 300 feet in diameter. (~100m) object weighs 100,000 lbs (~50,000 kg) object is at a...
Aug12-12 11:43 AM
bgizzle
6 1,422
For a unit mass sliding down the stationary curve y = f(x) at the point (x, y), we can consider our mass to be sliding...
Aug12-12 09:32 AM
voko
13 1,076
What is the escape velocity of nitrogen heated to 325 K?
Aug12-12 09:21 AM
Simon Bridge
5 1,193
Okay so Ive been trying to understand what causes one substance to have a higher specific heat then other but Ive read...
Aug12-12 09:00 AM
mfb
1 533
I am trying to figure out how much force i need to pull to drag an object with a given surface 1634 square inch and...
Aug12-12 08:55 AM
mfb
1 420
A test tube filled with water is being spun around in an ultracentrifuge with angular velocity. The test tube is lying...
Aug11-12 07:46 PM
Doc Al
3 818
Hi experts, I still do not understand how positive charge is distributed inside a conductor. In case of extra...
Aug11-12 04:29 PM
Yugeen
0 617
If I take a feather and a rock and drop them at the same time, because of the effect of the gravitational force, we...
Aug11-12 04:10 PM
Morgoth
6 1,046
OK, I was thinking about transformers and mutual induction and then drifted onto displacement current. I then decided...
Aug11-12 09:48 AM
madhatter106
4 1,104
Hello. I would like help finding downloadable magnetism simulator applications for my Mac, which runs OSX Lion with...
Aug11-12 09:41 AM
Kyoshin
0 466
What is Virtual Displacement in D'Alembert principle???????????Please explain with a good example..........:eek:
Aug11-12 08:15 AM
ZapperZ
1 484
3 masses 120 degrees away from each other each one of 46g is spinning at 600RPM 58mm away from the center and are...
Aug11-12 03:12 AM
Vonnesy
8 1,115
Can somebody help me out here. The gravity of a black hole is so strong that nothing can escape it, not even light....
Aug10-12 08:40 PM
phinds
1 457
-DELETED SORRY- Realized this is probably not the best place to post this type of question
Aug10-12 04:00 PM
Philip Wood
1 568
I proposed a new hydroelectric energy idea to somebody and they asked me for a "energy balance". I know nothing about...
Aug10-12 03:54 PM
bgizzle
2 530
Just a quick question relating to thermal equilibrium between a hot and cold body. If a hot body and cold (closed...
Aug10-12 02:36 PM
Khashishi
2 746
We have all seen Ohms law, J=σE. This approximations makes sense in simple electric fields in which the charges are...
Aug10-12 11:05 AM
GarageDweller
0 583
i know that B = μH, where B is the magnetic flux density, H is magnetic field density and μ is the permeability of the...
Aug10-12 09:57 AM
vanhees71
18 41,162
So I work for a drilling company that stores oil in large cylindrical tank facilities. The total volume of each tank...
Aug10-12 09:16 AM
mfb
14 966
Hi, due to the fact that its not my daily work, I how someone could help me to find a startingpoint, how to solve my...
Aug10-12 04:14 AM
KESchnitzler
0 410
Imagine that an electron is travelling with velocity +v inside a uniform sphere of charge at potential +V. In the...
Aug9-12 03:16 PM
johne1618
4 1,043
One concept in physics that has never set well with me is the way work and energy are defined. According to all the...
Aug9-12 12:04 PM
WraithGlade
5 955
I have difficulties in finding the true black carbons in a diamond from an image. Since diamond has a high...
Aug9-12 11:02 AM
sty2004
8 1,229
in electromagnetics , considering boundary conditions of dielectric and perfect conductor , inside conductor E = 0....
Aug9-12 06:48 AM
erece
2 550
So solid planets do not generate a magnetic field. Planets that are at least partially liquid do because they have...
Aug9-12 04:38 AM
Simon Bridge
1 668
A syringe contains ideal gas. The piston is frictionless and no gas escapes. Once heated slowly, the piston moves...
Aug9-12 03:21 AM
Philip Wood
2 1,394
in mass spectrometry, velocity selectors are used to select charged particles with a certain velocity. They use...
Aug9-12 03:19 AM
Philip Wood
5 773
Hi All, I tried to find entropy of liquid nitrogen in various data books, using nitrogen's CAS number, MSDS, but I...
Aug8-12 10:52 PM
AbhiNature
7 1,464
The dynamics of mechano-elastic systems such as the Duffing oscillator can be described by the movement of a particle...
Aug8-12 03:18 PM
jdvlok
0 463
Hello everyone! I am working on a new project, and my boss asked me to do some calculations with regard to the...
Aug8-12 01:11 PM
mfb
1 396
I have a big pipe with known diameter, length and velcity at big pipe. There are two pipes dividing form the big pipe...
Aug8-12 11:49 AM
mfb
3 1,187
Hello everybody. I have to admit that I feel quite troubled since long time, actually since I read the solution of...
Aug8-12 09:42 AM
mfb
8 874
https://lh6.googleusercontent.com/-3UQ1j2NQaGY/UB_fq85XZdI/AAAAAAAAACM/r0vToMNYhWc/s882/Schematic.jpg First, Id...
Aug8-12 08:36 AM
0lolol0
9 2,140
I'm reading my course book on ELectromagnetism and it is talking about a wave moving in the y-z plane but with...
Aug8-12 07:19 AM
tomwilliam2
8 1,190

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