2) An electron is accelerated from rest through a voltage difference of 50.0V. What is its final speed? (me = 9.2 x 10-31kg) O 6.2 x 10^7 m/s None of the options listed O 1.2 x 10^8 m/s O 7.2 x 10^9 m/s 4.2 x 10^6 m/s
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