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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 41,680
The Benouilli effect, used by aeroplanes, race cars and of course blowing pieces of paper. OK, In the case of an...
Oct27-03 12:25 AM
zoobyshoe
40 7,949
Hello! I've read thousand of explanations about how q and q-dot are considered independent in the Lagrangian treatment...
Sep5-13 06:55 AM
rubi
40 2,064
I'm trying to understand why a superdeformed nucleus may be represented as bulging perpendicular to the axis of...
Mar27-14 11:05 PM
D H
40 916
Are the questions a) why does an accelerating charge radiate and b) why does an uniformly accelarating...
Apr18-10 09:16 PM
GRDixon
39 10,617
Another intersting point on home electronics raised was - why does every device you purchase have it's own...
May13-05 03:40 PM
zoobyshoe
39 3,327
if one recalls the old classical physics terms namely repose angle, i've got a problem for them. as it(repose angle)...
Aug24-05 10:49 PM
russ_watters
39 2,516
I was watching "Casino Royale" with my friends yesterday, and there was a part where a commercial plane was about to...
May26-11 12:13 AM
etsija0
39 7,479
can static friction do work?
Dec10-07 02:12 PM
arildno
39 4,357
Hello, im new to the these forums. I recently read the article in the Wikipedia about this force (Abraham-Lorentz)...
Mar9-09 06:44 PM
snoopies622
39 4,034
let me first donate a(A,B) is the acceleration of A relative to B Observer 2 and a subject A with mass m are falling...
Nov19-11 12:46 AM
Zula110100100
39 3,785
I have a very simple conceptual physics problem that I am looking to solve, and unfortunately I've been out of school...
Jun7-09 09:24 PM
Bob S
39 34,279
The wikipedia article I quote below is confusing me. I followed the links to Frank Lambert's website, where he claims...
Jul1-13 02:26 PM
andrebourbaki
39 6,900
Suppose you have a dissipative system where \dot{q}=p/m \dot{p}=-\gamma p -k\sin(q) So there isn't a...
Mar9-11 05:19 AM
homology
39 3,097
A friend of mine says they can tell which 2 notes are being played together on a piano keyboard. How can this be if...
Jun27-11 12:06 AM
Born2bwire
39 3,823
In Landau's Mechanics it states "If all co-ordinates and velocities are simultaneously specified, it is know from...
Jun15-13 06:45 AM
lightarrow
39 1,613
This post specifically queries the absorption, by matter, of (thermal) radiation which has been emitted from a source...
Jan26-14 01:19 PM
Arfur Bryant
39 703
I was wondering how to build a particle accelerator at home. If it is possible, please tell me how. Thank You -ATCG
Nov1-13 05:35 PM
Vanadium 50
38 21,223
According to source i read, in classical theory it its believed that charged particles radiate when the accelarate -...
Oct7-09 09:27 PM
jason12345
38 7,005
I have a question about a classical physics problem. The original problem appeared as a homework problem in a physics...
Nov22-08 02:24 AM
Prologue
38 11,609
Basically, what I mean to say is that lets say I am playing ping pong...I put a lot of sidespin on the ball.(from back...
Oct24-10 10:32 PM
Roy Dale
38 7,597
I decided to try and learn what entropy is today and I swear to god I've been sitting here for 4 hours and I still...
Nov28-10 08:18 PM
QuantamMan
38 60,973
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 11,607
Hi friends Let me talk in context of cars wheels..... See!, tractive force is what ground offers us depending upon...
Nov7-09 01:29 AM
R Power
38 11,090
Ive seen this problem phrased several ways and posted several times a couple of times by me. But I have not seen an...
Jan15-11 02:57 PM
RonL
38 3,683
This might be math problem, but I only see it in EM books. \nabla X (\vec A X \vec B) \;=\; (\vec B \cdot...
Apr5-11 10:43 AM
yungman
38 5,084
How does one find the electrical resistance of a homogenous sphere of uniform density? By connecting two wires...
Feb26-13 02:19 AM
Menaus
38 4,043
In case of a transmission line consisting of two wires in parallel (aka Balanced line) the characteristic impedance Z0...
Aug17-13 04:43 AM
sophiecentaur
38 1,276
Hello, I have recently joined with hope that I can find a straight forward answer to a question that has bugged me for...
Sep1-13 08:21 AM
boneh3ad
38 1,531
What happens to a circuit over a resistor that causes measured voltage to drop? If voltage is related to a charge...
Dec21-13 06:54 AM
rcgldr
38 1,206
I'm having extreme difficulties finding understandable informations on the why and how on the topic of wave paquets,...
Jul12-05 11:31 AM
Hans de Vries
37 5,020
If we could imagine an object in space which does not obey the law of inertia ( ie it offers no resistance to motion)...
Sep25-07 02:13 PM
Doc Al
37 4,024
hi all why do many things in physics move in waves ? in fact , if im not mistaken , everything apart from mass...
Jun13-11 11:23 AM
Studiot
37 4,451
A cylindrical aluminium bar is placed vertically on an insulating surface. The radius of the bar is R and the length...
Apr5-09 08:29 PM
deldotbee
37 7,400
When two equal masses collide without having any rotational velocity before the collision, and they do attain some...
Jun5-09 10:18 AM
DaleSpam
37 2,713
Read this. Electric flux is a measure of the number of electric field lines passing through an area. To calculate...
Jul29-09 08:27 PM
rockyshephear
37 2,978
in this diagram i made: http://img201.imageshack.us/img201/1856/physicsqa.png left: simple application of linear...
Sep4-11 05:52 PM
WildEnergy
37 4,246
I am refering specificly to page 273 6.3.2 A Deceptive Parallel in the "Introduction to Electrodynamics" 3rd edition...
Nov18-10 07:54 AM
DrDu
37 4,934
F=μmg. How was μ calculated? Obviously experiments were needed. So, done the experiments, what's the exact...
Mar16-11 09:47 PM
RandomMystery
37 2,557
Can someone please explain how a hammer can drive a nail. A person swings a hammer in the air and exerts a force on a...
Nov5-11 11:24 AM
zoobyshoe
37 4,304
Hi, Suppose the police car moves faster than sound's speed and runs away from the person on the street. Will the...
Jan17-14 01:25 PM
sophiecentaur
37 1,167

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