Posted by echem on Tuesday, April 6, 2010 at 12:21am.
G M^2/R^ = Ke 64 e^2/R^2
M^2 = 64 Ke e^2/G
M = 8e sqrt(Ke/G)
You seem to be using the right formula, but I get a different numerical answer.
Are you sure you are using the right electron charge (e)?
Oh, you mean the 'e' in the 8e might stand for 8 times electron charge of 1.60217646E-19 coulombs? I was doing it as 8 times e(the mathematical constant 2.71828183)
Yes, e is the electron charge. You are comparing electrostatic and gravitational forces
Thank you! I should have known that, guess its getting late :)
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