The table below shows some data about four moons orbiting a gas giant planet:
| Moon | Diameter in km | Distance from Planet in 103 10^3\,103 km | Time of orbit in Earth days (d) | Mass of moon in 102110^{21}1021 kg |
|---|---|---|---|---|
| Aegis | 12 000 | 150 | 1.5 | 2.4 |
| Boreas | 4 000 | 300 | 4.2 | 0.15 |
| Chimera | 8 000 | 600 | 12.0 | 0.80 |
| Draco | 32 000 | 1 800 | 60.0 | 45.0 |
Use the table data to answer the following questions:
Draco has the largest gravitational field strength. Suggest a reason for this.
State the equation linking density, mass, and volume.
Calculate the density of Chimera in kg/km3\text{kg/km}^3kg/km3. You may assume that Chimera is a sphere and that its volume is given by
volume=4πr33 \text{volume} = \frac{4\pi r^3}{3} volume=34πr3Calculate the orbital speed of Aegis in km/s\text{km/s}km/s.