Here’s the design information for the roller coaster: The track has two hills. The mass of a roller coaster car with passengers is 850 kilograms. The first hill is 50 meters high. There are 320 meters of track between the top of the first hill and the top of the second hill. Label the drawing of the roller coaster system with the information above. Label the height of the second hill with a question mark.

if they have a finite resultant

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

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.

e/c, where e is its total energy