Which form of Kepler’s third law can you use to relate the period T and radius r of a planet in our solar system as long as the unit year is used for the period and astronomical unit is used for the radius?
A. T3=r2

B. T2=r3

C. T2=r

D. T=r2
B. IS THE CORRECT ANSWER!

T2=r In the form of Kepler's law that can use to relate the period T and radius of the planet in our solar systems

Explanation:

Kepler's third law:

     period (T) of a planet is proportional to the cube of the average orbital    radius (R).

      where G = 6.67 x 10-11 N-m2 /kg2

        M = mass of the foci body

answer; i believe that the correct answer is (d) a very small amount of mass