# 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 Views: 4,835 Announcement: Follow us on social media and spread the word about PF! Jan16-12 Before posting anything, please review the Physics Forums Global Guidelines. Again, for some odd reason, people... Apr22-11 05:26 AM ZapperZ 1 48,208 The question is to calculate: q, w, ∆U, ∆H, ∆S for each step(A to B, B to C, C to A) I know how to calculate the... Apr22-12 07:19 AM Psi^2 2 1,308 What happens when we send in a vacuum pulsed electron beam with a frequency 1e9Hz and power 1e6MeV? Thanks. Apr22-12 06:12 AM mfb 3 727 Is cycle the same as wavelength? Thanks! Apr22-12 03:48 AM Bobbywhy 1 1,495 Alright guys, just looking for a point in the right direction for a tutorial question. GIVEN VALUES: Temperature... Apr22-12 03:06 AM Blem 2 1,719 Hello, In electrostatics, classical mechanics predicts that a charged particle's action-at-a-distance force... Apr21-12 11:14 PM Philalethes 5 977 I am really not all that intelligent and fairly new to the whole mathematical equation solving thing. So please bare... Apr21-12 06:34 PM pbody 4 881 In one of my homework problems (This ISNT a homework help question! It is conceptual) It says to find the "effective"... Apr21-12 04:13 PM Vanadium 50 5 2,618 I was curious, why is energy conserved in elastic collision but not in perfectly inelastic collision? It said this in... Apr21-12 02:54 PM Woopydalan 5 1,258 If an axle is being pulled with a tractive effort E, can this be resolved into a couple and forwards force E at the... Apr21-12 02:04 PM Eugbug 2 1,050 Anyone can explain why there is axial stress in cylindrical thin walled vessels? I know that there is circumferential... Apr21-12 09:52 AM jayman16 0 740 I'm having trouble trying to understand what a volt is, and I thought this question might be able to help me... Apr21-12 09:37 AM mfb 4 1,943 Is there any mathematical relation between the value of charge(ie proton/electron) and radiation which is being... Apr20-12 09:35 PM Bob S 6 1,163 Earth ground believed to be good electrical yet poor thermal conductor. Is it possible to use in some thermoelectric... Apr20-12 02:31 PM Stanley514 0 748 can anyone help me in figuring out why i got different answers in my calculated value to my experiment value (or maybe... Apr20-12 11:34 AM uknew 3 856 A wire of radius one meter is centered on the origin in the xy plane. This wire carries a total charge of +Q. Another... Apr20-12 09:14 AM jubin 0 857 Is paint a conductor of electricity? Since we charge the paint and let it move to the metal body of a grounded car so... Apr20-12 04:08 AM sgstudent 2 2,499 Perrin got his nobel prize because of his experiment on brownian motion, which is thought to have proven the existence... Apr19-12 11:36 PM josh1492 7 3,295 I'm a compsci guy reading Feynmann's lectures leisurely. I find the retarded-field equations somewhat shocking due to... Apr19-12 05:14 PM isthisrealife 0 721 Hi, I need to compute the inverse of the moment of inertia (MOI) tensor of a bunch of point particles in a simulation... Apr19-12 05:11 PM danbolin 8 1,895 When picturing electric fields, they are always based on a positive test charge. As you move on to potential... Apr19-12 04:15 PM chrisbaird 3 1,331 I had a thought that I hope you could give me feedback on: Imagine a complex configuration that had a steady... Apr19-12 07:28 AM mfb 1 699 This is how Wikipedia summarizes the Poincaré Recurrence Theorem: This is wrong, isn't it? Don't you need to... Apr18-12 10:52 PM haruspex 1 1,076 Hello everyone, How are you doing? I have a doubt about electromagnetic induction, in three particular cases. I... Apr18-12 07:11 PM marcusl 5 1,511 If there is already a post/thread for this topic, i apologize, and please link me to it, if you'd be so kind. I... Apr18-12 06:51 PM beach_waddell 16 2,976 For a given pinhole size in a camera, and camera size, what would be the optimal pixel size to get the maximum... Apr18-12 06:06 PM Khashishi 2 1,183 I would like to know if the transmission delay of pressure give a differential force on an object ? Example: an object... Apr18-12 11:48 AM boneh3ad 4 991 Hi I want to make sure my intuition is correct about the buoyant force. What I am confused by if we take a cube or... Apr18-12 05:25 AM Genericcoder 4 776 Right now I have Schroeder, and I'm not a fan of it, despite some of the rave reviews I have read. I'm thinking I need... Apr18-12 04:52 AM cragar 4 1,307 With a standard bolt and nut. Create 2 areas, red and green, red surface = green surface. Green surface is closer to... Apr18-12 04:49 AM Hassan2 5 1,141 Hi guys, I have been self-studying physics since sometime Its been going great,but I was reading yesterday on... Apr18-12 04:49 AM Genericcoder 2 1,061 Hi all, I'm a total NEWB to this forum, so Hi! I need help deciding which laser to go with, and choosing optics... Apr18-12 02:12 AM nmz787 0 1,287 Hi everybody I have been trying to develop an intuitive general understanding of how the trajectory of an object ,... Apr18-12 01:36 AM haruspex 1 780 i see G is calculated with g,or assumed to be the same,just other value,for all planets,stars,etc,variable being just... Apr18-12 01:13 AM Vanadium 50 13 1,353 I know Dirac had said yes to existence of microscopic monopole by quantum theory, so why not the macroscopic monopole? Apr17-12 11:43 PM liumylife 2 976 1. what is the importance (practical use) of moment diagram by parts? 2. Is it just another method of drawing the... Apr17-12 09:59 PM jnlbctln 0 1,033 I am a bit confused by the definition of an isentropic process in the flow of an ideal gas. isentropic implies... Apr17-12 05:37 PM citrouille 4 1,722 How do I show that our equations for the E- and B-fields for the oscillating electric dipole do NOT satisfy Maxwell’s... Apr17-12 03:57 PM DrDu 5 1,635 So there is a daredevil named "Professor Splash" who is known for diving (belly flopping) from over 30 feet into a... Apr17-12 03:01 PM DaveC426913 7 2,117 Suppose a closed loop with constant current around the loop. The loop is in a uniform constant B field. The force is ... Apr17-12 02:41 PM yungman 8 896 an average one,not big or poney... Apr17-12 12:26 PM chrisbaird 8 1,179

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