energy

  1. SB257426

    Electromagnetism: Velocity of a subatomic particle

    A question popped up in a physics textbook and I would just like to clarify my answer: a) My answer: Potential difference is positive so ΔV = ΔU/q and since potential difference is positive so must be ΔU. ΔU = q*ΔV = (-1.602 * 10^-19)(100) = -1.602 * 10^-17 ΔU = -ΔKe -1.602 * 10^-17 =...
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