The Earth's orbit around the Sun has a semimajor axis of 1.496×108 km and an eccentricity of 0.01671 . The speed of the Earth at perihelion is 30.29 km/s. What is its speed (km/s) at aphelion? 32.32 29.29 31.30 27.83 30.27 29.78 30.03 28.45 26.74 28.11