Key chain angle a vehicle enters a circular and level highway exit ramp with a constant speed of v= 70 km/h. at this moment the driver notices that the ignition key chain makes an angle 0 with respect to the vertical. calculate this angle 0 if the radius of the ramp is r=50 m. 0=37.6°

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.

+15-35=-20

going in opposite directions