Recent content by aspodkfpo

  1. aspodkfpo

    What happens when an uncharged object is brought into an electric field?

    ? How am I thinking about this wrong? E = V/d, d decreases and E becomes larger.
  2. aspodkfpo

    Spring Force vs Height on a Trampoline

    How did you get through this algebra? " ##\sqrt{h^2+w^2}-1##, giving a vertical force component of ##kh(1-(1+\frac{h^2}{w^2})^{-\frac 12})## per spring. For small h this approximates a total force of magnitude ##k\frac{h^3}{w^2}##. "
  3. aspodkfpo

    Fractional Errors: When to Use Raw vs. Fractional Values?

    Still don't see why you were writing p+d/2 / p-d/2 when it is 11/9 for 10+- 1 (where I assume 1 is d). Largest possible value would be p+d/p-d, would it not?
  4. aspodkfpo

    Weight of fluids on a submerged person?

    So we don't consider the weight of water, but look at is as buoyancy?
  5. aspodkfpo

    What is the relationship between torque, linear force, and rolling resistance?

    gravity and normal force. was wondering how torque and linear force differs, that's why I provided my explanation.
  6. aspodkfpo

    What is the relationship between torque, linear force, and rolling resistance?

    What exactly is the difference? With the single linear force there is compression of the circle and with torque it just rotates about the spot?
  7. aspodkfpo

    Spring Force vs Height on a Trampoline

    Why is there hysteresis?
  8. aspodkfpo

    Weird algebra and logic in a mechanics cart quesiton

    ## \frac {-b \pm \sqrt{b^2 -4ac}} {2a} ## - why does this not work?
  9. aspodkfpo

    Weird algebra and logic in a mechanics cart quesiton

    12b) was fine, I could do it, was not sure about the -k/m x becoming - k/m 0 or how they get the equations for the first few lines. Will look at it again. How would I observe latex code in non-linear form when typing? i.e. \ frac a b isn't in text.
  10. aspodkfpo

    Weight of fluids on a submerged person?

    Was referring to the weight of the water on top of his body, because he is submerged (i.e. below water level).
  11. aspodkfpo

    Doppler effect and hydrogen alpha distributions

    nope, I don't see why it wouldn't be the same % for each wavelength, i.e. straight line distribution.
  12. aspodkfpo

    Fractional Errors: When to Use Raw vs. Fractional Values?

    Wait how is 10+/-1 with 11/9 = (P+d/2)/(P-d/2). Why not P+d/P-d
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