Titan has a radius of 2800.0 km and a mean density of 1.5 g/cm^3. Earth’s Moon
has a radius of 1737.0 km and a mean density of 3.4 g/cm^3. What is the ratio of gravitational acceleration on Titan compared to that on the Moon? The gravitational constant is G = 6.67 × 10^-11 m^3 kg^-1 s^-2.