A boy is used to riding his bike to school 5 miles north of his house. Yesterday he decided to ride his bike from school to his friend's house which is located 1 mile north of his house and it took him 0.2 hours to get there. Assuming the house is the point of origin and north is positive direction, what is the boy's velocity in mph after reaching his friend's house?

im not to sure what it is

volts times amps 6 x 0.5 3w

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.