Yes. All major bodies in the solar system have noticeable gravity. Ganymede and Callisto have surface gravities of 14% and 12% of Earth's gravity respectively.
1.428 m/s2
less
Ganymede has 14.6 percent of the gravity of earth. Therefore, if an astronaut weighing 900 kg were on Ganymede, his gravitational pull would be the equivalent of 13.14 kg.
Because it is the biggest moon in the solar system. If you meant "moon" in your question, then your answer is here.
Yes
Yes. All major bodies in the solar system have noticeable gravity. Ganymede and Callisto have surface gravities of 14% and 12% of Earth's gravity respectively.
1.428 m/s2
less
It is 142.3 m/s
Ganymede has 14.6 percent of the gravity of earth. Therefore, if an astronaut weighing 900 kg were on Ganymede, his gravitational pull would be the equivalent of 13.14 kg.
It is 1.428 ms-2 compared to 9.81 ms-2 on Earth.
It is 1.43 ms-2 compared to 9.81 ms-2 on earth.
Because it is the biggest moon in the solar system. If you meant "moon" in your question, then your answer is here.
Lunar gravity is one-sixth as strong as Earth's gravity.
I'm not 100% sure, but gravity is a relation of mass. On that basis I would say Ganymede a moon of Jupiter and the largest moon in the solar system
All matter causes gravity. Every planet will have a gravitational attraction. Certainly Earth, Mars, our Moon, and the Jovian moons Callisto and Ganymede will be walkable.