An object's weight is W0 on the earth.
a. What would be its weight (in terms of W0) if the earth hadtwice its present mass, but was the same size?
b.What would be its weight (in terms of W0) if the earth hadhalf its present radius, but the same mass?
c. What would be its weight (in terms of W0) if the earth hadhalf its present radius and half its present mass?
d.What would be its weight (in terms of W0) if the earth hadtwice its present radius and twice its present mass?
