A long metal pipe of square cross-section (side a) is grounded on three sides, while the fourth (which is insulated from the rest) is maintained at constant potential Vo. Find the net charge per unit lenght on the side opposite to Vo. A long metal pipe of circular cross-section (radius R) is divided (lenghtwise) into four equal sections, three of them grounded and the fourth maintained at constant potential V0. Find the net charge per unit lenght on the side opposite to V0.

photocells convert light energy to electricity

i don’t know what the answer is i wish i

it would be kevlar ^^

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.