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[" 13.A space-ship is launched into a ci...

[" 13.A space-ship is launched into a circular "],[" orbit close to the earth's surface.What "],[" additional velocity should now be imparted "],[" to the space ship in orbit to overcome the "],[" gravitational pull.(Radius of earh "=6400],[" km and g = "9.8m/s^(2)" ) "],[[" a) "11.2km/s," b) "1.92km/s],[" c) "3.2km/s," d) "1.6km/s]]

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