- #1
ali13
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Homework Statement
A single proton and a single electron are fixed at a distance of 2.8 meters from each other. Find the magnitude of the electric force of attraction between them.
i have the answer to this, it is: 2.93*10^-29
but now it asks: Find the magnitude of the gravitational force of attraction between the proton and the electron. (Mass of a proton = 1.67 x 10-27 kg; Mass of an electron = 9.11 x 10-31 kg)
i'm not sure where to put gravity, 6.67 * 10^-11, in the equation:
F=k*Q*q/r2
thank you!