(part 1 of 2)
The planet Mars requires 2.46 years to orbit
the sun, which has a mass of 1.989 × 10^30 kg,
in an almost circular trajectory.
Find the radius of the orbit of Mars as it
circles the sun. The gravitational constant is
6.672 × 10-¹¹ N. m²/kg².
Answer in units of m. Answer in units of
m.

(part 2 of 2)
Find the orbital speed of Mars as it circles the
sun.
Answer in units of m/s. Answer in units of
m/s.