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Classical Physics

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Apr22-11 05:26 AM
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Hi everyone, I'm trying to design a formula that determines the launch velocity, launch angle, and time spent in...
Aug19-12 05:36 PM
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Hi, I have been trying to understand the fluctuation-dissipation theorem of statistical physics. I understand the...
Aug19-12 05:18 PM
Jano L.
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Hi, Is it possible to help to accelerate an object with an Archimede Spiral ? We can apply a force F perpendiculary...
Aug19-12 05:15 PM
3 478
Hi all, Problem ; Why a car consumes different amounts of fuel on two different roads with same characteristics...
Aug19-12 05:07 PM
3 598
Does entropy decrease when stars are created from a dust? Does etropy decrease when water freezes?
Aug19-12 01:00 PM
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Hello! This is my doubt: I have a particle with charge q and mass m with a relativistic velocity vu_x in a region...
Aug19-12 12:00 PM
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I'm doing a problem where I have to calculate the electric and magnetic fields. I've found B=0, so S=ExB=0. Has it got...
Aug19-12 11:55 AM
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Dear Forum, I am familiar with the formulas between inertial frames of reference that move at a constant speed...
Aug19-12 11:02 AM
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I am not able to figure out how to solve this problem. It does not seem to be a statics problem to me. At what point...
Aug19-12 09:08 AM
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Hi, When using a multimeter to measure resistance, what is the used current level of the multimeter? I am using...
Aug19-12 07:01 AM
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Hello, I am now studying centripetal force. and the problem is that centripetal force in gravitational field. ...
Aug19-12 04:33 AM
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Hello people, So i found out the tension in a ring rotating with constant angular velocity (in gravity free space)...
Aug19-12 04:31 AM
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There is no net torque in this system so angular momentum should be conserved. I can't see how that is however. ...
Aug18-12 05:22 PM
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Hi, Im working through some chapters of Goldstein and I'm up to canonical transformations now. On page 370 it says...
Aug18-12 10:33 AM
3 568
is it possible to construct a system with only finite number of point charges of arbitrary magnitude at finite...
Aug18-12 10:15 AM
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For the same material, same rectangular shape and the same length, The wider one or the narrow one will switch their...
Aug18-12 04:24 AM
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Hi all. When I was reading a paper...
Aug18-12 04:16 AM
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I have looked through my optics textbook and many websites about single-slit diffraction. They all end up deriving an...
Aug18-12 01:36 AM
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Assume you have a sinusoidal 500THz function generator and assume you have a compatible antenna. If you feed the...
Aug18-12 12:32 AM
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I know there is a difference between heat and temperature as once I was told what it is. I remember it being very...
Aug17-12 11:28 PM
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Asking in most general shape, why do signals from upper Ghz and above don't seem to travel in wires? Radio...
Aug17-12 10:43 PM
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Hey guys and gals, this isn't actually an assignment of any sort, so I didn't want to put it in the homework section....
Aug17-12 07:10 PM
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Hi, my question regards the application of the fluctuation-dissipation theorem (Kubo - 1966 Rep. Prog. Phys. 29...
Aug17-12 05:47 PM
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You are at the center of a sphere, and there is no net gravitational force on you. Which of the following do you most...
Aug17-12 05:44 PM
Andrew Mason
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Hi, I am trying to figure out how to calculate the permeability constant of a lot of plastics by making solenoid...
Aug17-12 04:50 PM
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Can someone explain what exactly happens when a capacitor is charged? At the positive plate, are loosely bound...
Aug17-12 10:14 AM
1 507
Suppose I have say a 40' long 3/4" garden hose stretched out linearly on a level surface. One end is attached to a...
Aug16-12 06:49 PM
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Hello, I am going through Whittaker's treatise on Classical Mechanics. In chapter 3 he derives the equation of...
Aug16-12 05:28 PM
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I am at the moment trying to do something different in the classical mathematical derivations of the equations for...
Aug16-12 04:29 PM
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1) Does anyone have a general idea of how to experimentally validate or falsify the Third Law of Thermodynamics...
Aug16-12 03:40 PM
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Is it possible to construct a portable ground using an positively charged electret? I think it would be useful to a...
Aug16-12 02:04 PM
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So I am studying about waveguides and I am going through all this mathematics and then I realized that I do not...
Aug16-12 10:44 AM
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Hello! this is my first post here,hope it's the good part of the forum. I have some questions and i would...
Aug16-12 08:03 AM
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Hi Physicsforums I am re-learning classical mechanics and having a tough time dealing with a certain line from...
Aug16-12 02:17 AM
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Hi all! I have been goofing around with antennas and wi fi radio equipment. Now I have a million questions about...
Aug15-12 11:11 PM
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Example: A common problem in undergraduate electromagnetic classes is calculating the electric field inside a solid...
Aug15-12 07:26 PM
Only a Mirage
9 1,872
Is shown like this in my book: Consider a rotating body with an angular acceleration α. There must be a tangential...
Aug15-12 03:27 PM
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Right, so I was going over some old (basic) electromagnetism principles (to make sure it doesn't all fall out of my...
Aug15-12 01:24 PM
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It is said that toroidal inductors/coils (see that are...
Aug15-12 11:40 AM
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When a car turns too fast, it skids away from the center and I don't understand how that's possible in terms of...
Aug15-12 10:24 AM
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