Suppose that an object travels from one point in space to another. make a comparison between the magnitude of the displacement and the distance traveled by this object.

a) the displacement is either less than or equal to the distance traveled.
b) the displacement is either greater than or equal to the distance traveled.
c) the displacement is always equal to the distance traveled.
d) the displacement can be either greater than, smaller than, or equal to the distance traveled.

A) The displacement is either less than or equal to the distance traveled.

Explanation:

The displacement is a vector, which is equal to the difference between  the vector representing final position (distance from the origin) and the vector representing initial position.

Opposite to it, the distance is a scalar, and is always additive, independent of the direction of the trajectory.

So, only in the case of a straight line trajectory from one point to another, the distance can be equal to displacement, being larger otherwise.

In the limit case, if the initial and the final position are the same point, the displacement is 0, whilst the distance can be any.

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.

its a 5.5 n

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