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What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24 hours. Take G = 6.67 x 10 raise to power -11 Nm/Kg2, mass of the earth is 5.98 x 10 raise to power 24kg.
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John is traveling north at 20 meters/second and his friend Betty is traveling south at 20 meters/second. If north is the positive direction, what are John and Betty's speeds?
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