1. The gravity field on a planet is 10.1 N/kg. If the planet's radius is doubled what is the new gravity field? (2.53 N/kg)

2. The gravity field on a planet H is 7.21 N/kg. If the planet's mass is increased from 3.61 x 107 m to 1.23 x 109 m what is the new gravity field? (245.9 N/kg)

3. The gravity field on a planet J is 11.1 N/kg. If the planet's radius is decreased from 1.41 x 105 m to 4.89 x 103 m what is the new gravity field? (9228.8 N/kg)