Planets X, Y, and Z have circular orbits around a Star, which is similar to our...
Planets X, Y, and Z have circular orbits around a Star, which is similar to our own Sun. Given the data listed below, answer the following questions.
Note: "Days" are treated as "Earth days", thus having 24 hrs.
| Name | Mass (kg) | Orbit Radius (million km) | Period (days) |
| Planet X | 5.82E24 | 141.4 | 315.6 |
| Planet Y | 7.13E23 | 451.5 | |
| Planet Z | 3.87E25 | 104.1 |
a) Use the data of Planet Z to determine its orbital radius
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