Physics, 28.06.2019 03:40 mcentire789

An electron with a speed of 5.00×106m/s , collides with an atom. the collision excites the atom from its ground state (0ev) to a state with an energy of 4.00ev . what is the speed of the electron after the collision?

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An electron with a speed of 5.00×106m/s , collides with an atom. the collision excites the atom from...