If you exert a force of 400 N to move a brick 2 m over 4 s, how much power do you use?

Explanation:required formula is

W=F*S

W=work =?

F=force =400N

S=displacement =2m

again

p=W/t

p=power=?

t=time =4 seconds

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.