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Proton collision

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A proton makes a head-on collison with an unknown particle at rest. The proton rebounds straight back with 4/9 of its initial kinetic energy.

Find the ratio of the mass of the unknown particle to the mass of the proton, assuming that the collision is elastic

© BrainMass Inc. brainmass.com September 23, 2018, 10:40 pm ad1c9bdddf - https://brainmass.com/physics/classical-mechanics/proton-collision-5607
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