All the following statements are true. Which one follows directly from Kepler's third law (p2 = a3)?
A)Venus orbits the Sun at a slower average speed than Mercury.
B)Venus is more massive than Mercury.
C)Venus has a thicker atmosphere than Mercury.
D)Venus takes longer to rotate than it does to orbit the Sun.

Question

Quizplus · Accepted Answer

Kepler's third law states that the square of the orbital period (p^2) of a planet is directly proportional to the cube of the semi-major axis of its orbit (a^3). This means that planets farther from the Sun, like Venus compared to Mercury, have longer orbital periods and hence orbit at slower average speeds.

All the Following Statements Are True