What is the speed of an electron with kinetic energy 760 eV ?
What is the speed of an electron with kinetic energy 0.52 keV ?
Kinetic Energy = 1/2 mv2 = eV
Speed, v =
Mass of electron, m = 9.11*10-31 kg
Charge on electron, e = 1.6*10-19 C
760 eV = 760 * 1.6 * 10-19 = 1.216 * 10-16 J
0.52 keV = 520 * 1.6 * 10-19 = 8.32 * 10-17 J
v1 = = 1.6339 * 107 m/s
v2 = = 1.3515 * 107 m/s
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