According to Kepler's third law (p2 = a3), how does a planet's mass affect its orbit around the Sun?
A. A planet's mass has no effect on its orbit around the Sun.
B. More massive planets orbit the Sun at higher average speed.
C. More massive planets must have more circular orbits.
D. A more massive planet must have a larger semimajor axis.
Answer:A
According to Kepler's third law (p2 = a3), how does a planet's mass affect its orbit around the Sun?
A. A planet's mass has no effect on its orbit around the Sun. B. More massive planets orbit the Sun at higher average speed. C. More massive planets must have more circular orbits. D. A more massive planet must have a larger semimajor axis.