The international space station is orbiting at an altitude of about 370km above the earth's surface. The mass of the earth is 5.976x10 ^ 24 kg and the radius of the earth is 6.378x10 ^ 6m. a) Assuming already circular orbit, what is the period of the orbit of the international space station? b) Assuming a circular orbit, what is the speed of the international space station in its orbit?

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