Kepler's third law, p2 = a3, means that
A) a planet's period does not depend on the eccentricity of its orbit.
B) all orbits with the same semimajor axis have the same period.
C) the period of a planet does not depend on its mass.
D) planets that are farther from the Sun move at slower average speeds than nearer planets.
E) All of the above are correct.
Question 2
Red and orange stars are found evenly spread throughout the galactic disk, but blue stars are typically found
A) in the halo.
B) only in or near star-forming clouds.
C) only in the central bulge.
D) evenly spread throughout the galactic disk.
