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July 24, 2014

Homework Help: physics

Posted by yanis on Thursday, February 14, 2013 at 10:19am.

If a protonand an electron are released when they 2.0X10^-10m apart, find the initial accelerationof each of them.

I know a=ke^2/mr^2
k = 8.99 x 10^9
e = 1.6 x 10^-19
r = 2.0x 10^-10
so what is the m ????

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