February 20, 2017

Homework Help: Physics

Posted by Nancy on Friday, February 15, 2008 at 3:27pm.

Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Assume the orbit to be circular and 400 km above the surface of the Moon. At this altitude, the free-fall acceleration is 1.11 m/s2. The radius of the Moon is 1.70 106 m.
(a) Determine the astronaut's orbital speed. (b) Determine the period of the orbit.

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