Suppose Car A has 1000 units of momentum and Car B has 0 units of momentum (it's at
rest) before they collide. Which of the
following statements is true about Car A and
Car B after they collide, according to the law
of conservation of momentum?
Car A and Car B will each have 1000 units of
momentum.
Car A will now have 0 units of momentum and Car
B will have 1000 units of momentum.
Car A and Car B will have a combined (total)
momentum of 1000 units.
Car A will still
have 1000 units of momentum and
Car will still have 0 units of momentum,

2b2t

explanation:

2b2t

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.

there are no atoms