The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is v . For a satellite orbiting at an altitude of half of the earth's radius, the orbital velocity is

Question

The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is

v

. For a satellite orbiting at an altitude of half of the earth's radius, the orbital velocity is

\frac{3}{2} v

\sqrt{\frac{3}{2}} v

\sqrt{\frac{2}{3}} v

\frac{2}{3} v

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