Are the orbits of the planets on the same plane? Yes, more or less
No, they're all over the place​

Which of the following is an example of motion in two dimensions?

The dot diagram represents the motion of the motorcycle as it moves from left to right

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9