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Electric force in simple atom

  • Thread starter Dell
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a simple atom is comprised of one electron and one proton, with a distance of R=0.5*10-10m between them

1) what is the electric force between them

F=K(qq)/r2 = 28.8N
------------------------------

2)how much smaller than the electric force is:
a) the gravitational force of the electron
b) the gravitational force of the proton

are the 2 gravitational forces not the same? is the force not equal to G(mpme)/R2 for both of them?
 

Doc Al

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a simple atom is comprised of one electron and one proton, with a distance of R=0.5*10-10m between them

1) what is the electric force between them

F=K(qq)/r2 = 28.8N
Better double check your arithmetic. 28.8N is huge (for atomic particles).

2)how much smaller than the electric force is:
a) the gravitational force of the electron
b) the gravitational force of the proton
This is worded strangely. Perhaps they meant the gravitational force on the particles.

are the 2 gravitational forces not the same? is the force not equal to G(mpme)/R2 for both of them?
Right.
 

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