# Classical Physics

- Principles developed before the rise of relativity and quantum mechanics. Mechanics, Electrodynamics, Thermodynamics, Optics...
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 Meta Thread / Thread Starter Last Post Replies Views Before posting anything, please review the Physics Forums Global Guidelines. Again, for some odd reason, people... Apr22-11 05:26 AM ZapperZ 1 41,791 Helloo, I don't understand how one arrives at the conclusion that the hamiltonian is a generating function. When... Apr18-14 08:27 PM vasilis 4 185 Hey guys, It has been a while since I've done anything to do with magnetism and was wondering if I covered one side... Apr18-14 06:33 PM TumblingDice 1 125 If you'll allow me to disregard the effects of Strong Interaction, how would I calculate the Electromagnetic Force... Apr18-14 04:12 PM Drakkith 4 175 Since Lagrangian is a function of q, q dot & time, then why in describing the Hamiltonian (H), L does not involve time... Apr18-14 01:57 PM JonnyMaddox 7 260 Dear Friends, I carried out an experiment of sudden release of oxygen (open nozzle) from an oxygen cylinder used... Apr18-14 11:16 AM curioso77 8 184 I'm having a hard time understanding air flow caused by pressure differentials. Given the following contextual image,... Apr18-14 06:54 AM Chestermiller 13 238 I hope this is the right place to ask this. It is an experiment question. I have a 785 nm laser and a 1550 nm laser... Apr18-14 04:38 AM UltrafastPED 4 156 Hi, all. Here is an expression about kinetic energy from analytical dynamics of Haim Baruh which confuses me. ... Apr17-14 04:09 PM JonnyMaddox 4 177 Hi, all there are equation in the pic but I cant understand them. I know work-energy principle which is W= F * X... Apr17-14 04:03 PM dauto 2 163 Hi, I have a 1m long, 10mm ID vertical tube attached to a vacuum system. I have a known flow rate of the air down... Apr17-14 12:21 PM bigfooted 1 115 Here is an excerpt from my textbook: "Ordinarily, this charge would simultaneously generate so large an electric... Apr17-14 11:23 AM lonewolf219 2 140 I get that by getting a charged object near an uncharged one, charges of the opposite sign are induced on the surface,... Apr17-14 11:09 AM Philip Wood 3 185 Since 2 splitted beams meet at ONE spot later on, we have just one beam which flows to the detector, therefore I... Apr17-14 10:24 AM Goodver 6 161 Hello experts! I was taking class of optical fiber and communication. My teacher was teaching the class via... Apr17-14 09:29 AM shayaan_musta 7 181 From my understanding, normal and anomalous dispersion are because the phase velocity is a function of k so it is... Apr17-14 08:04 AM vanhees71 2 104 From this figure we could see the axis of rotation of wheel is y axis and it's translational motion is along x axis ... Apr17-14 07:32 AM shivaniits 5 178 Hi. Btw: I haven't studied statistical physics yet, but I have studied the introductory course on thermodynamics. ... Apr17-14 07:11 AM ffia 0 109 Hello, I need data (articles and books) about what connection there is between the speed (or the power) of a... Apr16-14 09:16 PM curioso77 4 224 Suppose we have a planet of mass m orbiting a larger one of mass M along an elliptical path. If we use polar... Apr16-14 06:17 PM zalook 0 152 So, let's say a spacecraft at a large distance from any star needs to dump a tremendous amount of stored electrical... Apr16-14 03:08 PM nasu 3 177 sir in the graphs of electric field due to binary charge configuration why some curves are below x axis and some... Apr16-14 12:53 PM jtbell 3 109 Hi I am kind of Confused about an example in work done: It says that a man applies 250 N parallel to the slope to... Apr16-14 06:30 AM Doc Al 3 245 Is it possible to send enough light down a fibre optic cable to produce say 1000 Lumens? How would I go about... Apr16-14 02:14 AM UltrafastPED 6 147 Does a shock wave have a finite value that can be shared within a system? For example, if I explode a some... Apr16-14 01:08 AM Simon Bridge 1 120 http://s22.postimg.org/r41250uoh/reactive_moment_force.jpg Assume that the arbitrary-shape object shown has a... Apr15-14 09:41 PM FactChecker 6 142 After I have an expression for the stream-function in a problem, I can differentiate to get the tangential and radial... Apr15-14 06:46 PM wahaj 4 110 I've had a doubt about the following (somewhat contradictory) statements. 1) pressure applied to an incompressible... Apr15-14 12:22 PM Chestermiller 34 475 I have been toying with an idea that may break the second law of thermodynamics for a while now, but it is basically... Apr15-14 11:06 AM berkeman 6 223 Hello, I would like to try to "model" motion of two gravitationally interacting bodies. But from some "separated"... Apr15-14 10:32 AM UltrafastPED 1 109 how can we understand torsion of curve is in the direction of normal unit vector en? Apr15-14 10:30 AM UltrafastPED 3 117 Hi, I'm studying classical mechanics via Goldstein's book. And at the beginning of the chapter on the symplectic... Apr15-14 09:22 AM JonnyMaddox 0 105 With increased pressure tungsten has a higher melting point. (source below page 30) 45kBar increases melting point... Apr15-14 08:25 AM James125 2 134 I am curious about the effects of oscillation in a heat transfer system. For example consider a simple system... Apr14-14 11:25 PM Seth.T 3 108 Relating to the synchronous nature of the moon’s rotation and orbit around the earth, what would happen if the orbital... Apr14-14 05:51 PM cjl 1 142 I am teaching Physics and I'm not looking for help for a particular homework problem but on a class. Sorry if this... Apr14-14 05:03 PM ranger275 9 266 ... regardless of any possible technical problems, and then, on earth: a) someone throws an object in the air and... Apr14-14 04:21 AM sophiecentaur 10 261 After figuring out how to calculate Cd and Crr coefficients, I'd like to continue my "vehicle physics exploration":... Apr14-14 04:13 AM jumpjack 75 1,551 I recently looked at the reference in an article I am reading, and subsequently checked "Oscillations and Waves in... Apr14-14 01:58 AM UltrafastPED 1 142 I'm developing a scanner that uses a laser for edge detection. It will be mounted on a hexacopter that will traverse a... Apr14-14 01:54 AM UltrafastPED 4 174 It is taught that the classical treatment of the diatomic atom would give a heat capacity of $7/2$ due to 7 degrees of... Apr13-14 10:31 PM dauto 1 132

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