Physics

A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 2.15 × 104 m/s (Va) and the radius of the orbit is 5.15 × 106 m (ra). A second satellite also has a circular orbit around this same planet. The orbit of this second satellite has a radius of 8.65 × 106 m (rb). What is the orbital speed (Vb) of the second satellite

I set it up as (Va)^2/ra=(Vb)^2/rb then plugged in the given values and solved and got 3.22x10^-3 as my answer. Am I correct?

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