Question

A model shows that the moon has grown to twice its size, yet it has remained in the same place. In one to two sentences, explain how this would impact the gravity between Earth and the moon.(2 points)

Answer 1

if its radius has doubled, its mass will have grown by a factor of 8.
so, what does that mean?

Answer 2

Earth would have a large wobble and The days would be longer than 24 hours