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If an electron with a kinetic energy of $1.0\text{ eV}$ collides superelastically with a carbon atom at rest and bounces directly backward with the same speed, what is the resulting speed of the carbon atom?


  • ${m}_{e}=9.109\times {10}^{-31}\text{ kg}$
  • ${m}_{carbon}=1.994\times {10}^{-26}\text{ kg}$
  • $1\text{ eV}=1.602\times {10}^{-19}\text{ J}$
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