The International Space Station is orbiting at an altitude of about 370 km above the earth's surface. The mass of the earth is 5.97 × 1024 kg, the radius of the earth is 6.38 × 106 m, and G = 6.67 × 10-11 N ? m2/kg2. Assume a circular orbit
(a) What is the period of the International Space Station's orbit? (b) What is the speed of the International Space Station in its orbit?
(a) 5.5 ×103 s (b) 7.7 ×103 m/s
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