In what kind of gravitational field are Newton’s laws valid?

The newton’s law of universal gravitation states that a particle attracts every other particle in universe using a force that is directly proportional to product of their mass and inversely proportional to square of distance between them. F = G(m m /r ) 2 1 2 Universal gravitational constant G = 6.693 × 10 11cubic meters per kilogram second squared. Newton law of gravitation also similar to coulomb laws of electrical forces,which is used calculate magnitude of electrical force arises between two charged bodies.both are inverse square law but only difference is coulomb's law have product of two charges in place of product of masses. Here gravitational field is the influence that a massive extend into space around itself,producing a force on...