An electron traveling along the x-axis enters an electric field that is directedvertically down, i. e., along the negative y-axis. What will be the direction of theelectric force acting on the electron after entering the electric field

it may be wrong but i think its a

the answer would be 32*f

resonant frequency

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.