A satellite is in a circular orbit around an unknown planet. Thesatellite has a speed of 1.55 x 104 m/s, and the radius of the orbit is5.10 x 106 m. A second satellite also has acircular orbit around this same planet. The orbit of this secondsatellite has a radius of 8.60 x 106 m. What is the orbital speed of thesecond satellite?