A force of 1.0 3 103 N moves a heavy box up a ramp with a 218 incline. The weight of the box is
1.69 3 103 N, and it moves up the ramp at a constant
speed. What is the coefficient of kinetic friction
between the box and the ramp?

whichever one it is, it's definitely not one that you included on the list you provided.

answer: strength i guess

explanation:

a coal burning power plant

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.