Recent content by Elder1994

  1. Elder1994

    Verify Stokes' Theorem for this vector field on a surface

    Hello, I reviewed the problem and I found indeed that the limits that I used were wrong, changing that the answer for both integrals is ## 6\pi ## !!! Thank you.
  2. Elder1994

    Verify Stokes' Theorem for this vector field on a surface

    Hello, I've read all your comments, thanks for answering! I've tried to solve the problem and for the line integral, I used de parametrization: ## x = 3\cos\theta, ~y=2\sin\theta ##. I also defined my ##d\vec r## as ##(-\sin\theta , \cos\theta , 0) d\theta##, after this the line integral (from 0...
  3. Elder1994

    Verify Stokes' Theorem for this vector field on a surface

    I do not understand how can I parameterize the surface and area and line differentials.
  4. Elder1994

    Find the electric dipole moment for a water molecule

    The equation that we saw in class is for a continuous charge distribution, I think that for this exercise I need to treat the system as a discrete charge distribution but I'm not sure. Also, I don't know how I can calculate the intensity of the electric field needed to move this charge.
  5. Elder1994

    A The Laplacian of the potential q*exp(-r)/r

    Hello, I have a problem where I'm supposed to calculate the charge distribution ρ. I need to calculate it by applying the Laplacian operator to the potential Θ. The potential is the function: q*exp(-αr)/r I found on the internet that for this type of potentials I cannot just apply the...
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