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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
1 47,702
At t = 0, Q0 = 18 C and I = 0 in an LC circuit. (a) At the first moment when the energy is shared equally by the...
Jul31-08 11:45 PM
1 2,393
when inertia can act as athe mass ,force and generate momentu, the why another word called mass moment of inertia. how...
Jul31-08 04:04 PM
11 13,565
After a while reading from the shadows, I have decided to emerge and ask a question or two. I was...
Jul31-08 07:51 AM
Andy Resnick
1 1,067
Hi All, A stupid question for sure (sorry). Does a moving ion, since it carries an electric field, creates some...
Jul31-08 04:31 AM
12 2,432
There is a 200 liter tank, well insulated. I first fill in 180 Liter of 50 Degree Celcious water, then slowly...
Jul30-08 11:05 PM
0 1,204
I'm trying to understand electrical potential and have a couple thought questions (Part A and part B) Part A Is...
Jul30-08 02:26 PM
Ben Niehoff
1 3,865
Easy question for those who know, I expect. It would help me understand though. Generally, wherever I look for...
Jul30-08 08:21 AM
2 1,062
Wikipedia says: "In a uniform gravitational field, the gravitational potential at a point is proportional to the...
Jul30-08 08:11 AM
0 1,559
Does anyone know the optical algorithms for calculating (or at least estimating) parallax and luminosity? So far I...
Jul30-08 08:10 AM
Andy Resnick
7 1,660
Hi, I was just wondering why the air going over a wing travels faster than the air going underneath? My teacher once...
Jul30-08 07:09 AM
3 5,084
hi there. I'm having some problems with Center Mass calculations... I have a CM moving at x axis with Vx, and it as...
Jul30-08 05:35 AM
2 992
Hello, After some persistent trouble, I finally succeeded in registering and logging in. Hurrah. I cannot often...
Jul29-08 05:44 AM
4 1,777
Hello. This is not a Physics homework problem, but rather a Programming project. I am asked to model a pendulum...
Jul29-08 02:18 AM
4 6,357
Hi All, I have a question and hopefully this is the right board for it. First let me explain that I am a...
Jul28-08 08:09 AM
Andy Resnick
2 2,647
I have a quad with electric start and a pull start (like a lawn mower). Can it be pull started after an emp? If not...
Jul28-08 02:01 AM
1 1,051
The figure shows a cuboidal shaped conductor inside which there is an ellipsoidal cavity. The center of the cavity is...
Jul27-08 11:02 PM
3 2,497
I have been having a lot of trouble finding classic works of physics and sciences online. Can't find anything by...
Jul27-08 02:11 PM
3 1,751
Ex:At home, you plug an electric drill into an electrical outlet and turn it on. At the moment you turn on the drill,...
Jul27-08 08:30 AM
1 1,421
Hi I tried to derive the distance traveled by a body at contact acceleration from the definition of acceleration...
Jul27-08 05:52 AM
2 21,595
I read on wikipedia that the E field obeys the superposition principle, meaning I can just add up the individual...
Jul26-08 04:31 PM
0 949
Could you please spot where is the fault in this reasoning? I suspect that some of the relations may not be applicable...
Jul26-08 06:06 AM
Vanadium 50
4 1,782
I hope someone can help with this - its been driving me mad for a while now! You will have noticed the shape coffee...
Jul25-08 01:12 PM
8 1,581
Hi, Suppose we apply an electric field E to a dielectric material. It is my understanding that the actual field...
Jul25-08 12:15 PM
Andy Resnick
4 1,320
in relating the index of refraction to the relative permittivity (dielectric constant/function). it is known that n =...
Jul25-08 11:58 AM
1 14,709
When one object accelerates away from another object, relativly they are both accelerating away from each other. The...
Jul25-08 11:27 AM
7 1,537
would the speed of light be attainable in a place where light doesn't exist?
Jul25-08 10:51 AM
10 1,504
Hi could anyone advise me to weather I am right in thinking when using equation one to calculate the thermal...
Jul24-08 10:56 AM
0 1,107
in using rayleigh scattering theory to calculate the polarizability of particles of arbitrary forms with sizes smaller...
Jul24-08 04:59 AM
1 1,547
So, someone said the random quote "We dropped him faster than a magnet". So my question is, if this proposed magnet...
Jul24-08 12:31 AM
1 2,083
What would be the nature of the diffracted wave produced when the spherical wave hits a sharp edge. For a plane wave,...
Jul23-08 02:16 PM
0 1,619
As follows, a box is placed on the ground And let the limiting static friction be 5N for instance an external force...
Jul23-08 07:35 AM
Doc Al
3 1,379
Does a moving electron in an independently exisiting magnetic field get push sideways because the electron's motion...
Jul23-08 02:05 AM
0 1,260
I'm wrestling with the question of dragon flight and whether it would be possible/feasible. I've read the book "the...
Jul22-08 10:38 PM
huggy bear
7 3,136
I wish to understand evaporative cooling. Apparently the principle consists in pumping the vapour above a bath, hence...
Jul22-08 07:06 PM
Angelos K
4 2,768
Hello, I have a little project I'm playing with that involves calculating a series of forces and summing them to...
Jul22-08 10:30 AM
2 4,246
It's been a while since I've been in the classroom and I'm having trouble figuring this one out. I'm trying to create...
Jul22-08 10:04 AM
1 3,368
So... am I understanding this right? Does Lenz's law suggest that the velocity of a magnet dropping (gravity) into a...
Jul21-08 11:18 PM
1 1,087
Here's a silly question I ended up thinking about. Maybe I learned it in college, but it's long forgotten by now ^~^;...
Jul21-08 09:32 PM
4 1,203
Hi What do the 4 equations say in words? not in math but in words that explains the meaning of them. thanks
Jul21-08 08:50 PM
5 2,096
... with all this drilling equipment and an idea, albeit a dumb one. Big tube, through the moon. Big permanent mag...
Jul21-08 04:39 PM
13 1,813

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