Recent content by lukcho

  1. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Hmm, i see what you mean. This sure is another interesting question.
  2. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Why there should be a delay if the Larmor formula does not depend on the velocity? I don't quite follow you.
  3. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    ops i think i know where i may be wrong here. I may have misunderstood what you mean when you say the charged ball has greater apparent mass Did you mean that this apparent mass actually behaves as a real mass in the sense that it converts the incomming (from the rope) energy to a kinetic...
  4. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    I mean this: The charged ball looks heavier to the rope than the uncharged ball (because of the extra apparent mass caused by interractions between the charge and it's field - this is according to you). By "looks heavier" here i mean that the rope must apply greater force in order to...
  5. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Hmm, when i started this thread i thought that the subject is known and clear to the people from ages as it is classical physics! I just meant to clear the things for myself. I never imagined there can still be such gray areas in the clasical physics with still standing unanswered questions...
  6. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Then am i right to conclude that the Abraham-Lorentz formula uses different definition of "reaction force" than the one i mentioned (the force caused by the extra apparent mass' inertia)? If this is so, then i wonder what that different definition of "reaction force" might be and what is its...
  7. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Hmm, what are you talking about? In my thought experiment the charged ball was in state of constant acceleration. This is a matter of experiment setup. No one was talking about circular paths!
  8. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Thanx for your patience! :smile: I don't need too extensive and through answer, i just wanted to get some rough (and informal) intuition about where the emitted energy comes from. If i understand you correctly what you mean, in simpler words, is that the charged ball will appear to the rope...
  9. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Well all this about the radiation direction etc. is very good but i don't see how it is related to my question - where does the emitted energy come from. Whatever the radiation direction is, the energy preservation law can not be violated. Let me restate my question again. Imagine some...
  10. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Hmm, do you mean that, informally speaking, the two formulae [Larmor and the Abraham-Lorentz] speak in "different languages". For example one of them works with the total energy whereas the other works only with the mechanical energy or something like that? This could possibly explain it. I can...
  11. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Maybe the endpoints could account for the _total_ energy during some big time period. But what happens in the mean time? Note that the period of the constant acceleration could be arbitrary long. We can't just say that during the constant acceleration we borrow energy from the "nothing" and...
  12. L

    Is the Abraham-Lorents force formula in wikipedia correct?

    Hello, I am new to the these forums. I recently read the article in the Wikipedia about this force (Abraham-Lorentz) and I can't understand how it can only depent on the "jerk" (that is the acceleration's derivative). Maybe i miss something, but this seems quite impossible to me: What...
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