A 15 kg soccer ball is kicked with a velocity of 8 m/s, what is the momentum of the ball?

120

Explanation:

Momentum = mass * velocity

Mass = 15

Velocity = 8

Momentum = 15*8

Momentum = 120

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.