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Potential energy problem

  1. Oct 9, 2006 #1
    Mastering physics keeps saying I'm off by an additive constant.

    A proton's speed as it passes point A is v. It follows the trajectory shown in the figure.

    This is my input: sqrt(80/(1.67*10^-27))+v
  2. jcsd
  3. Oct 9, 2006 #2
    Nothing? This thing is due in a couple hours
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