Question

what is the magintude of the gravitation force on 7kg of substance on the earth mass of the earth is 6*10[26] kg radius of the earth 6.4*​

Answer 1

The gravitational force between a mass and the Earth is the object's weight. Mass is considered a measure of an object's inertia, and its weight is the force exerted on the object in a gravitational field. On the surface of the Earth, the two forces are related by the acceleration due to gravity: Fg = mg.