Calculate the KE of a large car traveling at 15 m/s. The mass of the car is 2000 kg

225000 J

Explanation:

K.E = 1/2 mv^2

= 0.5 x 2000 x 15^2

= 1000 x 225

= 225000 J

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.