An electron with a mass of 9.11 x 10-28 g, is accelerated by a positive charge to a speed of 5.0 x 106 m/s. What is the kinetic energy of this electron in joules?

Question

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Answer 1

Lucy,

The equation you want to use here is KE = 0.5 x mass x (velocity)^2

Make sure to convert your unit of mass to kg so your answer will be in Joules.