Nancy is playing on a ladder and slide. the entry point of the slide is 3.0 meters above the ground and the slide is inclined at an angle of 30.0° with the horizontal. what is nancy's displacement each time she slides down from the top?

Idk

Explanation:

unlike poles attract

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.