Io is a moon of jupiter with a mass m 89x1022 kg and radius, Ask an Expert

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IO is a moon of jupiter, with a mass M= 8.9X10^22 kg, and radius of 1820Km.

A. if nasa wants to put a satellite in a very low orbit around IO, what orbital speed is needed?(the orbit's altitude is very small compared to Io's radius)

B. What period will this satellite have?

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