February 23, 2017

Homework Help: Physics

Posted by lucky on Sunday, April 3, 2011 at 8:26pm.

A certain moving electron has a kinetic energy
of 1.01 × 10−19 J.
Calculate the speed necessary for the electron to have this energy. The mass of an
electron is 9.109 × 10−31 kg.
Answer in units of m/s.

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