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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 45,661
So what if we have two thick lenses? Thanks in advance ,
May29-14 06:46 AM
1 175
Why change of magnetic flux with the time through a coil induces current in it? Please tell me that what happen to...
May29-14 05:01 AM
5 268
Hey, I don't if this is the right place to ask ( it is not a homework question but just a curious one about what i...
May29-14 03:06 AM
7 252
This question is about push bikes, but could be applied to anything with a versatile engine and a gearing mechanism. ...
May29-14 01:39 AM
3 220
Hello, Im a student and I try to design a valve connected to a tank. However I have some troubles to define the...
May28-14 06:53 PM
1 186
Hello, I need some help understanding Bernoulli's principle, flow rate, velocity and pressure. I understand...
May28-14 11:27 AM
3 349
Hi I am new to this forum. I am an amateur blacksmith/machinist/all around tinkerer. I took a class with a...
May28-14 07:33 AM
4 192
When thinking of a spherical shaped particle moving about under Brownian motion, one describes its motion by...
May28-14 07:11 AM
Steve Drake
2 218
Initially the pings from Malaysian airlines flight MH370 could only determine the distance of the aircraft from the...
May27-14 10:39 PM
29 1,925
I am going through Mary Boas' "Mathematical Methods in the Physical Sciences 3rd Ed". I finished the chapter 3...
May27-14 08:43 PM
4 234
I was wondering how could I hold a lot of charge inside, for example, a ball. I thought by wrapping it in an isolant...
May27-14 08:34 PM
1 200
Hi, I am trying to resolve a force into xyz components and I think I'm getting a bit confused. When viewed face on...
May27-14 07:03 PM
4 200
I was solving a static electricity/electric field problem and I came across with one saying earth has an electric...
May27-14 04:56 PM
7 383
Hello there, I have a problem that I've been trying to solve for some time now and I find myself struggling. I am...
May27-14 03:56 PM
1 145
I am aware that when charged particles accelerate or decelerate, the particle will emit a certain amount of radiation....
May27-14 02:05 PM
Prince Rilian
2 181
What is the smallest amount of electricity (volts, amps?) required in order to create a magnet capable of spinning a...
May26-14 05:21 PM
2 206
Both of these represent waves moving in the $+x$ direction. I have seen both used in Howard Georgi's book on waves and...
May26-14 03:51 PM
6 320
My question is simple: Why do batteries need electrolytes? Wouldn't the battery need the charge to flow only through...
May26-14 02:36 AM
3 312
Hi, have searched around but can't find what im looking for (probably because im not entirely certain what its called)...
May25-14 02:09 PM
5 303
I read that Jones matrices can descibe optical devices with polarized light. They are 2 by 2 matrices.A basis can be...
May25-14 01:37 PM
5 265
Hello, I have been self-learning Thermodynamics and I am having a bit of trouble with calculating the work in...
May25-14 09:20 AM
4 261
I have tried to search everywhere, but cannot find answer to this: does anyone know if there is a table etc. of what...
May25-14 08:46 AM
Simon Bridge
1 169
Yeah sure, change in speed of light as it travels from one medium to another. But why does it affect the path? I mean,...
May25-14 06:16 AM
Manraj singh
17 546
Let's say I have a magnetic ball within a solenoid that has current passing through it. How would I calculate the...
May24-14 10:19 PM
4 213
So I'm not OK with how some people derive this equation. These people consider a pipe whose endings have...
May24-14 05:25 PM
20 536
how much energy is gained by an electron in a battery?
May24-14 04:14 PM
4 247
I saw an example of a hypothetical EM wave that had constant E and B fields. Is that possible? How would it be...
May24-14 09:15 AM
11 465
When a wire has current I in a magnetic field B, there is the Lorentz force is it considered a conservative force or...
May24-14 09:07 AM
30 740
What's a feasible design for a garden ornament that would give the illusion of a butterfly hovering around a flower...
May24-14 08:31 AM
2 203
I need to find the correct voltage to apply to a wire grid in order to repel a plasma of which I know the density...
May23-14 07:03 PM
1 263
Hello everybody ,A friend of mine told me that best way (The most accurate) to do this is grating diffraction...
May23-14 07:42 AM
2 239
I was just wondering how the kinetic energy in, for example, a car undergoing circular motion is constant. We know...
May23-14 07:21 AM
Doc Al
10 269
Can someone help me see why the partition function is constant under adiabatic changes? S=const. entropy...
May23-14 07:20 AM
0 143
Hello everyone , I googled for it but nothing came up, Where can I find that? Thanks in Advance ,
May23-14 03:39 AM
5 226
Hi! How shall I correctly describe the velocity, as function of time, for an object put in a stream of e.g. water?...
May23-14 03:21 AM
5 312
I've been trying to work out the forces on a car in circular motion around a turn and I'm having trouble understanding...
May23-14 12:26 AM
6 365
My professor, in his handout (picture below), says the following about this diagram : I disagree with him...
May22-14 06:17 PM
1 206
I recently have discovered that the thermodynamics term "adiabatic" seem to be used slightly differently in Britain...
May22-14 05:42 PM
Philip Wood
11 491
Hi everybody ,Why arrangement of colors in higher order of diffraction is different from order 1 , 2 ? Thanks
May22-14 02:07 PM
2 175
I've been wonder something about coriolis force. Well... when we consider motion of projectile on earth, we have to...
May22-14 11:53 AM
2 177

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