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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
1 41,737
Im having a bit of trouble using Newton's Law of cooling. I have been given the formula T(t)=T_s + (T_0 - T_s) e^{-kt}...
Apr1-10 09:21 PM
8 19,254
Hope iposted this question in the right spot!!!!. If i launched something in space and then stopped its forward...
Apr2-10 12:37 PM
7 886
Hi The phase difference associated with a light wave going through a birefringent material is given in this link...
Mar29-10 03:22 PM
6 1,935
Hi, I was looking for a book that would explain classical field theory in a Hamiltonian setting. What I mean by...
Mar28-10 01:25 PM
7 3,451
What is the correct way to use a fidicual marker to measure the time period of a pendulum? Thanks
Mar31-10 03:14 PM
1 938
Hi, The simple definition of work done by a constant force on moving a constant mass is (size of) force on object...
Mar29-10 01:46 PM
5 1,132
I understand that friction is the force that opposes motion and that rubbing two objects togethere generate heat. But...
Mar28-10 09:40 PM
Andy Resnick
17 10,624
If two plates of area A and seperation d contain liquid in between with angle of contact 0 degrees, then what is the...
Mar28-10 11:15 AM
1 722
I am having trouble understanding a basic problem in fluids that came up during an exam I took last quarter. Namely,...
Mar30-10 03:34 PM
1 644
I ran a search for gyroscopes looking for a definitive solution to the "What causes Precession?" and found no good...
Mar31-10 04:01 PM
4 2,993
As a tennis player, I'm interested in the effects of top spin in tennis. I've done some research, but find myself...
Mar30-10 04:11 AM
7 5,684
Hi, Let's say a 10 kg particle (X) whose volume is 1 m3, and another 10 kg particle (Y) whose volume is 1*10-24 m3....
Mar29-10 03:26 PM
9 1,686
in collision we all talk about only momentum and energy. but which form of energy only kinetic no sign of potential...
Mar28-10 11:08 AM
3 675
i have took a basic course in fluid mechanics: Bernoulli equation states that: P + (1/2)*ρ*v^2 + ρ*g*h = constant...
Mar28-10 05:27 PM
1 769
ok, lets say we have a battery connected to a resistor and an inductance in series -|battery|+______...
Mar30-10 08:00 AM
3 1,481
Hi guys, What is the reason for action-reaction force pairs to arise? Is it a consequence of electrostatic...
Mar29-10 03:08 PM
2 920
Please help. I want find any book to see detailed solving of Poisson equation for point charge. Thank you in...
Mar29-10 11:07 AM
0 1,179
There is an example in my lectures notes I am having trouble following through: A particle moving in a rotating...
Mar29-10 12:40 PM
0 712
Hi, Why the wave equation is \frac{\partial^2 u}{\partial^2 x}=c^2\nabla^2 u? Where does it come from?Thanks.
Mar29-10 04:36 PM
1 590
Hi Im self-studying Alonso and Finns Mechanics and I have a question about this subject. Let a body rotate...
Mar29-10 06:51 PM
2 1,036
I'm sure I'm not thinking of this the right way. I'm hoping someone can see the error in my logic. Should a force...
Mar31-10 08:00 AM
5 1,959
Hi guys. I am working on making a haptic device for a baseball simulator. Now the problem is that I want to replace...
Mar30-10 05:14 PM
2 802
i guess my question is actually really really simple. lets consider rotation in the xy plane so that L points in...
Mar31-10 04:28 PM
12 1,714
When a dielectric material insert between two plate capacitors the conductivity may increase. Normally we talk that a...
Mar30-10 09:34 AM
1 1,047
Hi, I have two questions about electromagnetism that I would like to ask. The 1st one is as follows: I have two...
Mar30-10 03:12 PM
2 1,149
ok, the magnetic field through a single ring is n\muI , so the flux is BAcos(theta), with cos(theta)=1, flux = BA =...
Mar31-10 09:31 PM
4 1,999
I am studying differential equations from this book by Edwards and Penney, and I seem to have stumbled on this rather...
Mar30-10 12:58 PM
3 890
I am confused about the concept of product of inertia. Wikipedia says: "Here Ixx denotes the moment of inertia...
Mar31-10 02:42 PM
Filip Larsen
1 1,511
Alright, I'm confused about why thermodynamic cycles can never have 100% efficiency. There reversible processes right?...
Mar30-10 05:42 PM
2 1,357
I have become very interested in electricity and magnetism and I would LOVE to get more hands on experience than the...
Mar30-10 08:58 PM
0 582
I'm in the middle of studying for the MCAT, and just want to get all the concepts instead of memorizing how to solve...
Mar31-10 04:55 AM
Doc Al
1 1,477
is the principle how an aircraft move ahead in ground similar to how a spacecraft moves ahead in empty space? in...
Apr1-10 05:08 AM
7 1,087
Hi The way my teacher has defined coherency between two waves is that their mutual phase difference ∆ must be...
Apr1-10 02:20 PM
6 2,306
How to use a function f to describe the shape of water surface when a tiny object is floating on it based on surface...
Apr1-10 08:11 AM
2 1,674
I'm trying to simulate the force experienced by a current-carrying wire under the influence of a magnetic field. I...
Mar31-10 12:30 PM
0 1,209
All -- With a meter stick standing straight up and pivoted at the *bottom*, what is the final angular velocity as...
Mar31-10 11:19 PM
1 678
The diagram shows a straight wire carrying a flow of electrons out of the page. The wire is between the poles of the...
Apr2-10 03:09 AM
1 4,434
Hello All, I am going to be conducting a basic physics experiment where a magnet, which can slide up and down a...
Apr1-10 05:30 PM
0 616
I'm trying to model two cylindrical magnets (NdFeB, Grade N42) in Comsol. I'm obtaining the force and torques exerted...
Apr2-10 09:17 AM
0 2,847
If you have a 3 dimensional perfectly conducting body the conditions at the boundary for the EM field is as follows: ...
Apr2-10 10:42 AM
1 612

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