What is the formulae to calculate orbital velocity when only radius of earth is given?
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The velocity has to be just right, so that the distance to the center of the Earth is always the same.The orbital velocity formula contains a constant, G, which is called the "universal gravitational constant". Its value is = 6.673 x 10-11N∙m2/kg2 .The radius of the Earth is 6.38 x 106 m.
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