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Homework Help: State why the total energy after proton and antiproton collide is more than before

  1. Nov 13, 2011 #1
    1. The problem statement, all variables and given/known data
    In a particle accelerator a proton and an antiproton, travelling at the same speed, undergo a head on collision and produce subatomic particles. The total kinetic energy of the two particles just before the collision is 3.2 x 10[itex]^{}-10[/itex] J.

    State why the total energy after the collision is more than 3.2 x 10[itex]^{}-10[/itex] J.

    2. Relevant equations
    hf[itex]_{}min[/itex] = E[itex]_{}0[/itex] where E0 is rest energy of electron

    3. The attempt at a solution
    I thought energy, mass and charged were conserved...
    Last edited: Nov 13, 2011
  2. jcsd
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