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jaypee
Mar31-03, 12:11 AM
Does anyone know what would be the approximate orbital period (time for one complete orbit) for an apple placed in orbit around Earth at the moon’s distance from Earth?

russ_watters
Mar31-03, 12:31 AM
Orbital period depends strictly on distance (for relatively small objects). The apple would have the same period as the moon.

Loren Booda
Mar31-03, 12:55 PM
GMEarthmapple or Moon/(RMoon)2=mapple or Moon(vorbital)2/RMoon

so vorbital is the same for both Moon and apple, since mapple or Moon cancels (Newtonian approximation as Russ pointed out), and Porbital=(2[pi]RMoon)/vorbital