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1. If a proton is moving at very high speed, so that its kinetic energy is much greater
than its rest energy (mc²), can it then decay via p →n + n+?
2. What would an “antiatom," made up of the antiparticles to the constituents of normal
atoms, consist of? What might happen if antimatter, made of such antiatoms, came
in contact with our normal world of matter?

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