Aperiod of revolution around the sun for a certain planet depends on a. the distance of the planet from the sun. b. the total surface area of the planet. c. the planet's average temperature. d. the planet's size compared to the sun's size.

A period of revolution around the Sun for a certain planet depends on A. the distance of the planet from the Sun.

Explanation:

The planets are in constant motion, so that they revolve around their own orbit or around the Sun. The “rotation movement” designates the movement that the planets make around their own axis (equivalent to the time of 1 day), while the "translation movement" defines the movement that the planets make around the Sun (equivalent to the time of 1 year).

Gravity is what keeps all the planets moving around the Sun. So, the duration of the year at the time of the translation of a planet depends on the distance the planet from the Sun is: the farther it is, it doesn't just travel more distance but travels slower.

So, a period of revolution around the Sun for a certain planet depends on A. the distance of the planet from the Sun.

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.