A planet with mass 5.98 x 10- kg orbits a star with mass 1.99 x 1030 kg. The distance between the planet and the star at the per- ihelion is 1.06 x 10# m, and the distance at the aphelion is 1.352 x 10# m. The planet's orbital speed at' the perihelion is 37474.5 m/s. Determine its orbital speed at the aphe- lion. The universal gravitational constant is 6.67259 x 10 N . m-/kg Answer in units of m/s. part 2 of 4 Determine its kinetic energy at the perihe- lion. Answer in units of J. part 3 of 4 Determine its potential energy at the peri- helion. Answer in units of J