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A satellite is orbiting the moon just above its surface. The centripetal force making the satellite follow a

circular trajectory is just its weight, so its centripetal acceleration is about 1.622 m/s2 (the acceleration due to gravity near the moon's surface). If the moon's radius is about 1738 km, how fast must the satellite be moving? How long will it take for the satellite to complete one trip around the moon?

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