Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Assume the orbit to be circular and 575 km above the surface of the Moon, where the acceleration due to gravity is 0.949 m/s2. The radius of the Moon is 1.70 ✕ 106 m.

a) Determine the astronaut's orbital speed. (Answer in m/s)
b) Determine the period of the orbit. (Answer in s)

science is a systematic and logical approach to discovering how things in the universe work. true to this definition, science aims for measurable results through testing and analysis. science is based on fact, not opinion or preferences. the process of science is designed to challenge ideas through research.

explanation:

i believe the answer is a

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.