The perihelion distance from the sun for the planet Uranus is 2.750 ×10^9 km; the aphelion distance is 3.000 ×10^9 km.
(A) Calculate the period of revolution around the sun, for the planet Uranus. [Hint: 1 AU = 1.496 ×10^8 km.]
(B) Calculate the eccentricity of the orbit of Uranus.