Homework Help: physics

Posted by Jessica on Wednesday, March 5, 2008 at 2:37am.

An electron is released from a distance of 2 cm from a proton. How fast will the electron be going when it is .5 cm from the proton?

It says to use the work energy thereom, but I don't understand how to use it. any help would be greatly appreciated!

physics - bobpursley, Wednesday, March 5, 2008 at 7:39am
What is the PE of the electron at 2cm? That PE must convert to KE.

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