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A satellite, LangSat, moves in circular orbit around the Earth at a speed of 4.95kms-1.

(i) What is the altitude of the satellite
(ii) Determine the period of the satellite’s orbit
(iii) What is the value of the gravity, g, at the satellite.
(iv) If another satellite, DukuSat, is to be launched to an altitude of 3 times the altitude of LangSat, what would be the period and the orbital speed of DukuSat?

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