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Velocity of proton

  1. Jan 24, 2008 #1
    1. The problem statement, all variables and given/known data

    What is the speed of a proton whose kinetic energy is 23.0 keV?

    1 eV = 1.6e-19 J
    23 Kev = 23000 eV = 3.68e-15 J

    2. Relevant equations

    V = Sq. Rt. ( - ((2)(q)(Vba)) / (m))

    3. The attempt at a solution
  2. jcsd
  3. Jan 24, 2008 #2


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    Homework Helper

    Just sub the values into the formula
  4. Jan 24, 2008 #3
    What is each value? What is q, Vba, and M?

    Is M = 1.67e-27 kg ?

    And where does the KeV value go?
  5. Jan 25, 2008 #4


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    m=mass of a proton which you have. the eV is just another way to express energy.
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