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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 48,251
Can somebody please shed a little light on what this formula represents in the physical world? And how could I solve...
Apr9-08 03:20 PM
hslilly
4 1,436
it states that in a given volume V surrounded by conductors or for that matter infinity if the charge density \rho and...
Apr9-08 08:02 AM
pam
5 2,049
Hi, nice to find a physics forum. I had a quick question. I'm a television producer and developer, primarily in...
Apr9-08 07:25 AM
Shooting Star
1 1,578
An object rolls down a smooth plane (whose angle and length are given) starting from rest. At the end of the plane it...
Apr9-08 05:24 AM
Hootenanny
7 4,778
I understand very little of aerodynamics. Currently, my high school robotics team is designing a F1 model....
Apr8-08 07:32 PM
russ_watters
1 1,663
I started having this doubt since i saw the derivation of potential across a capacitor using this method. So.. here i...
Apr8-08 03:12 PM
Shooting Star
4 1,195
My lecturer has given me this formula for reflective diffraction m landa = d (cos a - cos b) where m is...
Apr8-08 02:11 PM
neu
1 1,515
Its been 15+ years since I have done any calcs like this and am very rusty, so even just a pointer in the right...
Apr8-08 12:25 PM
Gordianus
1 2,317
From the 1st law of thermodynamics we have dU = ∂Q+∂W but we also know dU = Tds - pdv , i am confused...
Apr8-08 07:48 AM
Hootenanny
1 1,416
For electromagnetic field we usually use the Lagrange's density ...
Apr7-08 08:24 AM
sweetser
44 7,241
Does anyone have an idea about a formula relating the refractive index of a medium to the temperature gradient...
Apr7-08 01:43 AM
Relena
7 2,124
Anyway ... a long long time ago, my father told me a story how when he was in college, they used to heat water just by...
Apr7-08 12:39 AM
Shooting Star
6 5,141
i understand the reason and steps leading to the equation that relates acceleration in the inertial frame to...
Apr6-08 07:59 PM
bman!!
4 1,466
I raised this question in the courseware section and I got only one response. To improve the response, I am repeating...
Apr6-08 06:28 PM
Doc Al
1 1,432
I'm trying to explain to a coworker some fallacies in a thought problem he came up with that has severely confused him...
Apr6-08 02:56 PM
luben
9 1,565
hi I'm a new poster here.the three body problem fascinates me a lot and was just wondering if there's any book out...
Apr6-08 09:56 AM
Jacob1983
0 1,018
ive just come across gauge transformations on maxwells equations, and mathematically its all pretty straightforward,...
Apr6-08 01:16 AM
Phrak
5 1,487
How does a magnetic field do work on the electrons in a wire? If F = q v x B, the magnetic field is always...
Apr5-08 10:36 PM
Phrak
7 1,855
Hiya. I'm revising for a classical mechanics first year exam, and the lecture notes on central forces are less then...
Apr5-08 04:35 PM
cpfoxhunt
0 810
Can an electron's mass and its magnetic moment be measured in the same experiment?
Apr5-08 03:57 PM
David George
2 1,150
I would like to analyze the motion of a superball, heres what I have so far, the perpendicular(to the ground)...
Apr5-08 01:45 PM
SpitfireAce
0 1,198
As we know, the variational principle can be used as the fundamental principle of mechanics. Without knowing Newton's...
Apr4-08 08:18 PM
cstalg
4 2,965
Consider a wire, if I suddenly pass current on it. There would be an instant localized B field around the wire. Since...
Apr4-08 07:58 PM
enroger
4 959
In school yesterday I was doing a practical and when I moved a small 1.5T block magnet near a rheostat the magnet...
Apr4-08 05:21 PM
lugita15
1 1,273
Im studying for the Fundamentals of Engineering exam (coming up April 12!!) and came across this Thermodynamics...
Apr4-08 01:04 PM
Mapes
1 1,110
I wanna know if in rapid adiabatic compression of a gas, is work done by gas on surrounding (atmosphere) numerically...
Apr3-08 11:07 PM
zarbanx
14 3,024
Hi all, One idle night a friend and I started an argument over the question: "How much energy is imparted on to...
Apr3-08 06:06 PM
seycyrus
12 9,458
I know that as temperature increases the extension of a material under a specific load increases too, but what is the...
Apr3-08 12:00 PM
Andy Resnick
1 1,208
Hoping that someone on this forum can help me with this problem that has been stealing my sleep at night:rolleyes: ...
Apr3-08 11:13 AM
jacob_yukon
0 638
Do electrons flowing in a circuit perform work with their mass (or kinetic energy)? For example like a water flowing...
Apr2-08 10:44 PM
Snazzy
32 6,952
If you have the primary and secondary coils of a transformer next to each other, then current will induce a voltage in...
Apr2-08 03:13 PM
TVP45
3 1,010
if a system of particles is composed of n freely moving particles .is the mass of this system qual to the sum of the...
Apr2-08 01:41 PM
tarekkkkk
2 902
If you combine many small magnets together in a cube or spherical shape (say those 1.5 tesla rare earth magnets), is...
Apr2-08 10:03 AM
clem
4 1,244
I am a beginner in thermodynamics. I was going through a educational board's chapter on thermodynamics. I want to...
Apr2-08 08:05 AM
Andy Resnick
2 1,087
So, I am looking a question about adiabatic expansions and the associated entropy changed. Why exactly is the...
Apr2-08 07:46 AM
Mapes
4 1,065
I was just wondering, since my textbook doesn't really explain it too well, what velocity is part of the equation F =...
Apr2-08 02:16 AM
Feldoh
13 2,096
When dealing with system containing millions of particles( for example, charged particles or magnetic particles) with...
Apr1-08 07:36 PM
pam
1 1,037
Hi there, I'm working on some experiments regarding to gases. I want to know what'd happen to gas which is uneder...
Apr1-08 04:16 PM
russ_watters
9 2,826
The flux rule states that the emf induced in any loop is given by the rate of change of magnetic flux through that...
Apr1-08 03:00 PM
lugita15
4 2,167
Hi! Can some one give me a link where i can find details about finding the velocity of propagation of a mechanical...
Apr1-08 12:17 PM
Andy Resnick
1 2,370

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