A racecar driver accelerates at a constant rate of 40 m/s2 starting from a speed of 60 m/s until she reaches a top speed of 100 m/s. How long did it take her to achieve her top speed? (show all steps )

d eras and periods

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.

i already answered it by 34/s