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April 16, 2014

Homework Help: physics

Posted by carlton on Saturday, October 22, 2011 at 11:02pm.

Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Assume the orbit to be circular and 720 km above the surface of the Moon, where the acceleration due to gravity is 0.839 m/s2. The radius of the Moon is 1.70 106 m.
(a) Determine the astronaut's orbital speed.
m/s

(b) Determine the period of the orbit.
s

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