1. The total energy of an electron is 2.00 MeV. What are the momentum and speed of the electron? It may be useful to note that the electron mass is 9.11 × 10?³¹ kg and 1 eV = 1.60 × 10?¹? J.
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00 \, \text{MeV})^2 - (0.938 \, \text{MeV})^2}\) Show more…
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