An electron at earth's surface experiences a gravitational force meg. how far away can a proton be and still produce the same force on the electron?

The proton could be 5 m far away from electron.

Newton's gravitational law states that the force of attraction between two objects can be formulated as follows:

F = Gravitational Force ( Newton )

G = Gravitational Constant ( 6.67 × 10⁻¹¹ Nm² / kg² )

m = Object's Mass ( kg )

R = Distance Between Objects ( m )

Let us now tackle the problem!

Given:

me = 9.11 × 10⁻³¹ kg

qp = qe = 1.6 × 10⁻¹⁹ kg

Unknown:

R = ?

Solution:

Grade: High School

Subject: Physics

Chapter: Gravitational Field

Keywords: Gravity , Unit , Magnitude , Attraction , Distance , Mass , Newton , Law , Gravitational , Constant

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.