Calcular el tempo necesario para efectuar una variación de 6x10 -4 Wb en el flujo magnético a otro flujo el cual varia 12x10 -4 Wb, al desplazarse una bobina de 500 vueltas entre los polos de un imán en forma de herradura, el cual genera una Fem (fuerza electromotriz o Voltaje) de 20 voltios.

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

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.