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April 20, 2014

April 20, 2014

Posted by **Terry** on Sunday, March 3, 2013 at 10:01am.

Part 2. Calculate the gravitational force between these two electrons. The universal gravitational constant is 6.7 × 10−11 N · m2/kg2 and the mass of the electron is 9 × 10−31 kg.

- Physics -
**drwls**, Sunday, March 3, 2013 at 12:48pmElectric force:

ke^2/R^2

1. Use R = 0.0087 meters

k = 9*10^9 N·m^2/C^2

e = 1.6*10^-19 C

====================

2. Gravitational force:

G*m^2/R^2

G = 6.7×10−^11 N·m^2/kg^2

m = 9.1*10^31 kg

Use same R as abOve

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