1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted