Answer :
The planet's orbit has an 18.5-kilometer radius. A planet takes years to complete one orbit around a star.
What does the word "mass" actually mean?
In physics, mass serves as a quantitative indicator of inertia, a fundamental property of all matter. Essentially, it is a body of matter's resistance to changing its speed or location in response to the application of a force.
In the example, what does mass mean?
The best way to define mass is how much matter there is in a given object or body. Mass underlies all we observe in our environment. Even air has mass, as does a bed, a football, a glass, a table, and a chair. After saying that, an object's mass decides.
To know more about planet radius visit :-
https://brainly.com/question/29806830
#SPJ4