Recent content by 93157

  1. 9

    Proof of Delta Network Capacitance: Just Curious

    does anyone know a site that offers a proof for the capacitance of a delta network? just curious 93157
  2. 9

    What is the electric potential for a cylinder with uniformly distributed charge?

    um quick question: because the alpha particle has a nonzero angular momentum, does that mean it is moving in a helix-esque spiral? or does it simply move along an arc of radius b (length from particle to pivot)? i'm also not quite sure on how to set up the energy equations. although the lead...
  3. 9

    How Do You Solve Projectile Motion Problems Involving a Launched Ball?

    try to always envision the velocity as the summation of two vectors, one vector in the direction of the x-axis and the other in the direction of the y-axis. this way you can break many projectile motion problems down to the core, and work out the small kinks before you put them together (with...
  4. 9

    What is the electric potential for a cylinder with uniformly distributed charge?

    i'm assuming that the initial potential energy must be zero. but i see that if i knew the initial potential energy, i could calculate the distance because the 'r' in U=(q*q-sub-oh)/(4*pi*epsilon-oh*r) refers to the distance between the charged particles. i feel like I'm missing a huge bit of...
  5. 9

    How Do You Calculate Capacitance in a Half-Filled Spherical Capacitor?

    D is E/epsilon-oh? i know that the field generated by a conducting sphere is q/(4*pi*epsilon-oh*r^2). and that the field in between the two spheres is only due to the inner sphere. okay, so... (ma mind's a churnin') E (of upper hemisphere sphere r-sub-a) =...
  6. 9

    What is the electric potential for a cylinder with uniformly distributed charge?

    for 1, i was trying to set up the potential energy = kinetic energy (given) and then the potential energy could be from the electric force the psitive charges exert on each other when in contace (at a distance of zero?) 2, i tried to set up an integral for dq/dr where r was some...
  7. 9

    How Do You Calculate Capacitance in a Half-Filled Spherical Capacitor?

    another for the EE pros out there an isolated spherical capacitor has charge +Q on its inner conductor of radius r-sub-a and charge -Q on its outer conductor of radius r-sub-b. half of the volume between the two conductors is then filled with a liquid dielectric of constant K. a) find the...
  8. 9

    What is the electric potential for a cylinder with uniformly distributed charge?

    for the love of god and all that is holy, i can not figure out how to set up the equations. any help is greatly appreciated 1. in experiments in which atomic nuclei collide, head-on collisions like that described in problem 23.80 (i'll explain in a sec) do happen, but near misses are more...
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