Express the average distance between the Sun and the Earth as a percent of the average distance between the Sun and Pluto. State the results in words.
Orbital radii: Earth = 149.6 × 106 km
Pluto = 39.53 AU
Orbital radius of the Earth: 149.6 × 106 km = 1AU
Orbital radius of the Earth: = (1/39.53)100 = 2.52%
The radius of the orbit of the Earth is only 2.52% of the radius of the orbit of Pluto.
