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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 41,717
Some of the following is more or less Halliday & Resnick, 4th Ed., section 9.8 (not the whole section and I added a...
Jul19-11 05:38 PM
Drakkith
3 1,171
I am studying the influence of a gyroscopic effect of wheels/tyres on a steering system in a car. I can't seem to get...
Jul19-11 04:39 PM
refusenik
0 738
consider two wires of different diameter. when current enters from that of greater diameter to lesser diameter drift...
Jul19-11 11:04 AM
chrisbaird
2 2,666
Hey All, Maybe a silly question, but... Is there a limit to how much a certain element can heat a body of air, say...
Jul19-11 10:33 AM
DaveC426913
5 1,261
I was working on semi-realistic projectile dynamics. The first thing i took was what if a sphere is thrown upwards....
Jul19-11 10:11 AM
chrisbaird
2 977
I have read kinematics and laws of motion(1st,second and third). In these two chapters one thing i found that ...
Jul19-11 10:11 AM
xts
4 1,339
Hello, I have a problem understanding wave propagation in dispersive medium because the prescription to solve the wave...
Jul19-11 09:33 AM
chrisbaird
13 2,375
is it necessary ffor coherent waves to be of same frequency? bcoz everywhere i read its written dat they must have a...
Jul19-11 09:18 AM
sophiecentaur
3 1,168
Could someone verify that my thinking is correct, or point out the mistakes if it is incorrect? I'm trying to...
Jul19-11 09:14 AM
sophiecentaur
2 1,454
My name is Derek Cox, I am new to the forum and I am not an engineer or anything close. I have a degree in flight...
Jul19-11 04:23 AM
tiny-tim
4 1,597
Hello ! I have an exam this Wednesday... your help will be appreciated... There are two types of questions I can't...
Jul19-11 01:13 AM
noamriemer
2 722
This is a simple question I have because I am looking at a particular engine cycle, and I can't seem to think of its...
Jul18-11 09:41 PM
shanesworld
7 1,333
Hi, I'm trying to understand point charges along a uniformly charged line with a charge per unit length. This is a...
Jul18-11 07:43 PM
gsal
2 520
I would like to know whether Kelvin or KJs matter when it comes down to a material radiating and / or conducting its...
Jul18-11 05:55 PM
Drakkith
2 869
Hello Forum, if we take a Gaussian beam whose waist occurs at the front focus of a positive lens, we will see that...
Jul18-11 03:29 PM
fisico30
0 957
hi i have been thinking about this scaling problem: Let me say a man and a cat jump from the top of a high...
Jul18-11 11:29 AM
chrisbaird
9 1,438
A wire is broken down into 12 pieces so that each piece is of resistance 1R. The pieces are joined together to form a...
Jul18-11 09:39 AM
A.T.
3 1,145
A researcher is interested in creating a particle accelerator that can spin particles in the uniform magnetic field at...
Jul18-11 04:46 AM
tiny-tim
1 1,612
In a paper by Coombes and Laue (Electric fields and charge distributions associated with steady currents) an...
Jul18-11 04:41 AM
shoestring
1 2,186
Hi, this should be an easy question unless I'm not understanding it correctly. As an object gets closer to your...
Jul18-11 12:24 AM
RedX
6 2,313
I understand the surface of the sphere is 4\pi sr. where the area of one sr is r^2. My question is why d\Omega =...
Jul17-11 07:29 PM
BruceW
1 1,368
I've been wondering for a while, a Rodin coil's magnetic field generation is the center as a strong open air magnetic...
Jul17-11 05:14 PM
Schreiberdk
1 2,890
why electromagnetic waves are represented by complex numbers?
Jul17-11 03:27 PM
yungman
2 1,252
in electromagnetic books, we see by the aid of vector calculus, we can reach to wave equation from Maxwell 's...
Jul17-11 03:20 PM
sadegh4137
6 1,243
The terms internal energy, enthalpy, entropy are state functions. Are change in internal energy(\DeltaU or...
Jul17-11 10:31 AM
Mapes
1 1,989
So, I was trying to find a rigorous mathematical derivation of gauss's law(please I don't want to hear again any field...
Jul17-11 09:23 AM
Meir Achuz
1 1,856
every people know that covariance principle is important in physics. before Lorentz transformations and special...
Jul17-11 09:16 AM
Meir Achuz
2 739
Okay, I am currently reading about motion on inclined planes and how the normal force acts directly perpendicular to...
Jul17-11 07:00 AM
Doc Al
7 1,690
how polaraization occurs?what is happening inside a polaraiser?
Jul17-11 06:51 AM
Drakkith
2 743
Hi all. Trying to find work done for a gas... Here is the question: A quantity of air is taken from state a to...
Jul17-11 06:27 AM
Philip Wood
12 1,426
Would it be possible to use a MASER to vaporize a hole in a cloud? How much would the current best MASERs spread...
Jul17-11 06:23 AM
sophiecentaur
3 640
Before i start my question , i have to mention that I'm only a beginner for physic and chemistry , if possible ,...
Jul17-11 06:06 AM
sophiecentaur
1 836
Classic paraboloidal mirror. Incoming flat wavefront of known wavelength (500 nm, green light), propagating parallel...
Jul16-11 10:53 PM
halfelven
0 1,448
when a can of coke placed in a sensitive balance is opened what happens to the reading? the answer of this question...
Jul16-11 05:36 PM
sophiecentaur
2 1,131
why all the charges in conductor reside on surface?
Jul16-11 01:23 PM
Philip Wood
2 780
why electromagnetic wave is transverse?
Jul16-11 08:21 AM
BruceW
2 732
Without causing a spark.
Jul16-11 01:43 AM
Calvin Cox
0 779
suppose g(r) is a scalar function which is constant inside the volume 'v' but discontinuous at the boundaries of 'v'....
Jul16-11 12:36 AM
RedX
1 824
This bothers me a bit: Gases? You include in the chapter of "fluid mechanics" gases? These are two different...
Jul15-11 05:15 PM
I like Serena
31 3,163
Hello! I'm taking Thermodynamics I in the Fall, and I was wondering what topics are typically covered in the first...
Jul15-11 03:28 PM
Pythagorean
8 4,433

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