The gravitational force between earth and the sun is a two-way for us both to the planet and the sun attract each other however earth is revolve around the sun rather than the sun revolve around the earth which statement best explains the orbit of the earth around the sun

First of all we should know that the planets are in the orbit around the sun. Now, why does a planet orbit  the Sun and not the Sun orbit the planet? The lighter object orbits the heavier one, so the Sun is heaviest one in the solar system. Moreover the Sun is 1000 times heavier than the largest planet, Jupiter.

Sir, Issac newton realized that the reason the planets orbits the sun related to why, objects fall to the earth when we drop something. The Sun's gravity pulls on the Earth, pulls down anything that is not held up by some other force and keeps everything on the ground.

Heavier objects produce large gravitational force than lighter planets. Therefore  heavier planet in the universe is the Sun, produces strongest gravitational pull.        

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)