What name is given to the force on an object caused by the earth's gravitational pull?

Answerthe force between the charges will be  f/9 (one-ninth of force f)explanationcoulomb's law relates the magnitudes  two point charges q₁ and q₂, the distance, r, between the charges, and the electrostatic force, f, between the two charges:     k represents coulomb's constant, k = 8.99×10⁹ n·m²/c².note that if we have r = 3r, then   

The  asthenosphere  is now thought to play a critical role in the movement of plates across the face of earth's surface. according to plate tectonic theory, the lithosphere consists of a relatively small number of very large slabs of rocky material.