A 2.0 kg block rests on a rough horizontal table. A rope is attached to the block and is pulled with a force of 8.0 N to the
left. As a result, the block accelerates at 2.5 m/s2. The
coefficient of kinetic friction Hk between the block and the table
is (Round to the nearest hundredth.)
Enter the answer

pe = weightxheight = 2000x1000=2,000,000joules

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.

pretty sure it's false