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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 46,790
Hi i'm studying for a test, and in the suggested reading book review has a few equations that they talk about but i'm...
Apr21-05 01:13 PM
Meir Achuz
3 1,462
A colleague of mine has suggested using Liouville's Equation in order to calculate the probability of collision...
May18-09 09:46 AM
belliott4488
3 1,185
Hello, I am trying to determine the calculation to use to determine the force at which a disk plate will fail for...
Dec25-11 01:49 AM
nvn
2 1,626
Hey Guys! I need help with interpreting something regarding simple barometers. I believe I understand what is going on...
Apr8-12 02:13 AM
nicu
1 1,143
Would someone please be able to run me through the different components of the Maxwell Stress Tensor equation. ...
Sep28-08 05:30 PM
Ben473
9 2,192
In rotational motion , the units for torque, \tau = r \times F , are N \cdot m and for work done by a...
Apr26-08 04:05 AM
benabean
5 2,421
Hi, I'm a first year physics undergraduate and doing a structure of matter course. I'm having difficult ...
May12-08 06:30 AM
benabean
0 1,389
I'm trying to build a strobe light with an adjustable frequency. I have 1.5V, 9V batteries,1 micro farad, 10 micro...
Mar15-11 08:16 PM
Curl
1 1,504
I was trying to derive the formula for the moment of inertia of a rectangular prism at its centre of mass. And ended...
Jan22-10 10:38 PM
benhou
15 6,997
I am doing some basic heat calculations about a CW laser illuminated tungsten tip (which should be used for...
Apr28-08 03:38 AM
Benindelft
2 1,532
how does the speed of sound vary with temperature in an ideal gas? how do we derive this relation?
Sep14-05 09:29 AM
benitta
4 1,014
Hi there. I got two questions for you: 1- How can I calculate the force of attraction in Newton of two bar magnets...
Jun10-08 07:56 AM
noneya44
2 7,653
I recently ran across an experiment which I needed to explain because it appeared to violate energy conservation. ...
May25-08 03:17 PM
benjum
0 3,149
Such a device would be a major breakthrough for both research and practical usage. This is not my area of expertise;...
Aug15-11 10:25 PM
uncanny_man
5 1,238
I was watching the Malaysian Grand Prix, when seeing the really hugely wide tires on the F1 cars got me thinking....
Apr11-10 04:12 AM
xxChrisxx
8 1,819
I understandthat moving charged particles can be made to rotate in a magnetic feild, but what happens when the induced...
Feb8-10 01:09 PM
sophiecentaur
4 1,210
was trying to calculate the equations of motion of gas flowing into a vaccum chamber of sea level air, but my maths...
Nov29-10 07:58 PM
benmww
0 1,180
are all mirrors limited by a certain intensity that they can reflect at a given wavelength, or does reflectivity just...
Jan17-11 11:53 PM
benmww
0 911
when light is reflected on a surface, there is always going to be some absorbsion by the reflective material. what i'm...
Feb11-11 06:50 PM
Drakkith
1 948
I've spent about 6 horus this weekend trying to construct to build a paper tower that will support thick textbook 14...
Sep18-06 03:34 PM
nealh149
3 4,379
So this is a conceptual question, it's not a direct homework question, but it does involve how to do a kind of...
Jun13-12 10:42 AM
Bennigan88
7 1,216
So I made an observation that I would really like anyone who is good with mechanics to look over to see if I got the...
Jul2-12 04:04 PM
Bennigan88
2 1,280
In my textbook, Joule's apparatus (two blocks falling from height h turn a paddle that stirs and increases the...
Nov15-12 02:13 AM
Simon Bridge
1 828
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
1 743
Hi ive been having an argument with a few friends about a theory of mine (based on what i can remember from my physics...
Aug18-09 11:34 PM
sylas
16 5,148
Hi All, I have a thought that I had a while ago and wanted some advise/feedback etc My thought was as follows: ...
Mar31-11 05:00 PM
pallidin
11 1,826
Hi everyone, There are 2 things I do not understand in the derivation of kinetic energy from work:...
Feb25-12 11:49 AM
juanrga
6 1,675
When hearing the same sound coming out from a Radio and a TV simultaneously (e.g., when a channel is beeing...
Oct21-08 01:56 PM
mgb_phys
22 1,734
Hi, coleagues. I'd like to hear others' opinions regarding these: a. why we don't get electrified when just...
Apr27-13 12:14 PM
CWatters
2 596
Dear colleagues, My question here refers to the EMF induced in an incomplete ring that is stationary amidst a time...
May7-13 04:23 AM
vanhees71
14 663
according to the 2nd law of thermodynamics, as time has increase, disorder universally is increasing among the...
Aug10-07 12:24 PM
SpitfireAce
5 2,928
Dear reader, can any on explain me what is a electromagnetic wave????? -benzun please go easy with me
Oct6-03 02:01 PM
Integral
11 4,773
dear reader, What are electrical waves? What are magnetic waves? What are electromagnetic waves? what is...
Oct16-03 11:33 AM
jimmy p
10 3,250
can someone please explain why when banking a curve at an angle so that no friction at all is needed to maintain the...
Feb23-08 09:00 AM
rcgldr
2 1,895
I wonder if someone could explain what is meant by 'End Correction' Any help is appriciated! thanks
May15-05 08:45 AM
Doc Al
3 3,974
If there is a circuit consists of a long thin conducting shell of radius a and a parallel return wire of radius b on...
Apr5-09 09:56 PM
Bob S
2 2,397
Jackson 2nd editon 6.2 and 3rd edition 5.26 are same questions but given solutions in problems are different. 2nd...
Apr5-09 04:39 PM
ber70
2 1,414
please lock thread. thank you.
Jul15-07 12:59 PM
beramodk
0 1,765
A worker on the roof of a house drops her hammer which slides down the roof at constant speed of 4m/s. Th roof makes...
Feb13-04 02:03 PM
Moose352
8 2,394
Hey - I am a bike mechanic with a large interrest in physics. I know that a larger disc brake rotor provides a...
Jul5-14 12:16 PM
90245
20 24,203

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