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A person is in the international space station 400km above the surface of the Earth. (Radius...

A person is in the international space station 400km above the surface of the Earth. (Radius of Earth 6,371 km, Mass of Earth 5.972 x 1024kg, G = 6.674 x 10-11 m3/(kg.s))

a) What is their free-fall acceleration? b) If an astronaut outside the space station were to drop a ball with a 5cm diameter which had a drag coefficient of 0.6 and a density of 0.4 x 103 kg/m3, what would its terminal velocity be when it is close to the surface of the Earth? (density air 1.29 kg/m3)(Vsphere= 4/3(pi)(r3)

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