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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 48,256
I'm studying for the Physics GRE and going over my thermo notes. Ok, so for enthalpy change (delta)H = (delta) U...
Oct14-09 08:21 AM
Mapes
5 13,721
Anybody have any recommendations for classical mechanics textbooks at the intermediate and/or advanced level, besides...
Aug7-04 11:00 AM
REINHARD
2 13,712
Say i have an acurate barometer that in this case reads QFE, is there any way that if i called up an airport's ATIS...
Jan25-09 08:42 AM
xajgyk
9 13,704
Is it possible to show that the maximum efficiency for a heat engine is given by \eta = 1 - \frac{T_c}{T_h} where...
Mar24-11 05:47 AM
netheril96
4 13,702
Is there any unconventional method to find out the relation between group velocity and phase velocity? know there is a...
Jun9-07 05:28 PM
Meir Achuz
3 13,698
hello, I'm new here =D dunno if this is the right section to ask this I'm really confused about power voltage and...
Aug3-08 12:24 PM
russ_watters
4 13,693
Hi, I'm wondering what the difference between a light dependent resistor and a phototransistor is. Am i correct in...
Oct21-06 05:47 AM
Reshma
2 13,687
Well, we all know that the farther you move the point of force application from the point of rotation, the greater the...
Jul7-08 12:40 PM
teodorakis
19 13,685
is an emf produced by a changing magnetic field or by a moving magnetic field?
Nov20-08 01:23 AM
Robin07
31 13,679
I found a long-time ago problem in helping archive here The problem is about attaching a mass m to a massless rod...
Dec31-08 06:39 AM
Doc Al
2 13,668
As far as I know, you can't prove laws, but anyway... We got to do an experiment at school. A weight is suspended...
Jan16-12 05:29 AM
harrylin
35 13,658
Hello all, Just wondering if someone can give me a brief explanation of Wood's anomaly with regards to optics. ...
Mar22-11 07:16 PM
astrosona
2 13,656
Hi.. I have a question about AC magnetic field, wondering if you can help me understand this. For a DC solenoid...
Jun11-09 12:00 PM
Bob S
11 13,653
I was told by my teacher that the definition for distance is just "the amount of ground covered", and that...
Feb15-09 11:33 AM
KellyOsbourne
4 13,571
I tried posting a similar question before, however, I've found the 1 reply is actually wrong. Hopefully with better...
Jan24-08 08:16 AM
Andy Resnick
2 13,512
I am trying to find out how fast a vertical cylindrical water column heats due to the ambient temperature. I already...
Jun7-10 07:48 AM
Rimidalv
6 13,505
There is no net gravity in a hollow sphere. You can get this result using calculus but that's not really...
Oct1-09 01:30 PM
stone1
29 13,495
Hi everyone, I am no expert in any means, so if what I am asking is silly, just tell me. This is an example. ...
Dec19-12 11:57 PM
Chestermiller
16 13,476
I have been doing mechanics in college and in the present chapter,two of the concepts that I found rather confusing...
Mar25-11 02:51 PM
tiny-tim
18 13,465
They say that vector laplacian is defined as the following: \nabla^2 \vec{A} = \nabla(\nabla\cdot\vec{A}) -...
Dec2-08 03:54 PM
bcorso1
12 13,439
May be this question has been asked multiple times here i was just unable to search it by topic or search term. The...
Oct23-12 02:31 PM
Naty1
14 13,407
I jump off a high bench (5ft high) to the ground. What is the g-force of the impact and how do you calculate it. It...
Apr12-09 03:58 PM
joec_49
7 13,406
Conservation of linear momentum is consequence of which one of Newton's three laws?
Feb23-09 11:10 PM
vjraghavan
9 13,378
Is the parallel axis theorem always valid for inertia tensors? We have only seen examples with flat (2d) objects and...
Dec1-08 08:19 PM
adriank
6 13,370
When a voltmeter measures the AC voltage in a circuit, does it measures the root-mean-square value of the voltage? Is...
Oct14-07 03:34 PM
mourici
14 13,367
Hi, I've always tken for granted that KE=(mv^2)/2, but never seen the derivation! I think it probably comes from U=...
Feb18-06 06:29 AM
Doc Al
1 13,365
I know the basic answer, that the movement of air sets things vibrating which makes noise, but I don't know the...
Apr27-06 03:34 PM
miket
3 13,335
Why is it that the equation for work done to stretch a spring is W = 1/2k(x22-x12) while the work done by a...
Sep20-09 08:26 PM
woodie37
11 13,319
I've got an investigation in which iam investigating the factors affecting the perioad of a BIfilar pendulum. So has...
May6-05 12:57 AM
Graham
12 13,314
Hey Guys, I know that this has been posted before, but mine is slightly different. Our instructor only provides:...
Dec19-07 08:16 PM
pervect
6 13,288
The air temperature at an altitude of 10,000 meters is a chilling -35 C. Cabin temperatures in airplanes flying at...
Feb22-04 05:22 PM
russ_watters
5 13,277
Does the metal pole of most umbrellas increase significantly the risk of the bearer being struck by lightning? In...
Oct28-10 01:51 PM
Bob S
9 13,256
Hi, 1) Can anyone explain to me from a conceptual standpoint, why increased current leads to an increased voltage...
Sep9-10 07:49 AM
ZapperZ
23 13,254
Electricity (the flow of current) is said to travel at near the speed of light (75-90%), but I read that electrons...
Oct2-09 12:54 PM
antd
38 13,240
So what is it? This is not a homework question. But I anticipate a good discussion.
Jan23-04 05:50 PM
ketch
23 13,149
What is the difference between "uniform plane waves" and "planes waves." Are these terms used interchangeably? What...
May1-07 08:21 PM
Claude Bile
16 13,077
Hey Guys, This is my first time posting ... sooo here it goes! I have spent the past hour trying to figure out...
Feb13-13 10:19 AM
sgstudent
15 13,037
Is it possible that my cpu temp could be less than room temp with a standard fan and heatsink? I've been hearing that...
Mar27-10 07:36 AM
russ_watters
15 13,031
I've been working on a simulation of a Lorenz Waterwheel, and friction was killing it - I couldn't use realistic...
Oct31-11 03:47 PM
berkeman
14 13,027
hey guys, i've been experimenting with a pendulum and while doing the error discussion for my experiments i got stuck...
Apr28-09 08:46 PM
Volcano
8 13,019

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