If the mass of the earth remains constant but the diameter of the earth becomes two times its present value, then the weight of a person weighing 80 kg - wt, would be

Keeping mass constant, if the diameter of the earth becomes twice, then how will the weight be affected?

If the earth shrinks such that its density becomes 8 times to the present values, then new duration of the day in hours will be

If the radius of the earth becomes half of its present value (mass remaining the same ), the new length of the day would be

How does the weight of an object vary with respect to mass and radius of the earth. In a hypothetical case, if the diameter of the earth becomes half of its present value and its ,mass becomes four times of its present value, then how would the weight of any object on the surface of the earth be affected?

If radius of earth becomes n times its present value, without change in mass, then duration of day becomes

If the earth suddenly charges its radius x times the present value, the new period of rotation would be

If the diameter and mass of the earth becomes twice of its original value , then how will the acceleration due to gravity will change?