Acar is moving towards a student at constant speed. the student notices that the sound the car makes gets louder and louder as the car approaches. the student suggests that the car sounds louder as it approaches because of the doppler effect that he learned about in science class this week. how would you respond to the above statement made by the student? a) the student has stated a valid conclusion for his observation. b) the student has drawn a poor conclusion because the car does not get louder. c) the student has drawn a poor conclusion because the doppler effect is about frequency and not amplitude. d) the student has drawn a poor conclusion because the doppler effect is about amplitude and not frequency.

C

Explanation:

On USA

C

Explanation:

It's on USATestPrep

prolly a beacuse the momentuem the car has increases while going down hill

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.