(a) Two protons in a molecule are 4.20 10-10 m apart. Find the electric force ex

Question

(a) Two protons in a molecule are 4.20 10-10 m apart. Find the electric force exerted by one proton on the other.

magnitude=____ N
direction= attractive or repulsive

(b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other.
Fe/Ge=____

(c) What must be a particle's charge-to-mass ratio if the magnitude of the gravitational force between two of these particles is equal to the magnitude of electric force between them?
=____C/kg

Explanation / Answer

a) 9*10^9 *(1.6*10^-19)^2 / (4.2*10^-10)^2 = 1.306 *10^-9 N

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