The mean diameters.of planets A and B are 9.3 × 10° km and 1.6 × 10ª km, respectively. The ratio of the mass of planet A to that of planet B is 0.45. (a) What is the ratio of the mean density of A to...

Extracted text: The mean diameters.of planets A and B are 9.3 × 10° km and 1.6 × 10ª km, respectively. The ratio of the mass of planet A to that of planet B is 0.45. (a) What is the ratio of the mean density of A to that of B? (b) What is the ratio of the gravitational acceleration on A to that on B? (c) What is the ratio of escape speed on A to that on B? (a) Number i Units (b) Number i Units (c) Number i Units