The weight of an object on the planet depends not only on its mass but m also on its distance from the planets center. this table list of the weight of an 80 kg on each planet in the solar system. uranus has more than 14 times as much mass as earth, yet the gravitational force is less. explain how this could be.

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?