The electric flux through a square-shaped area of side 5 cm near a very large, thin, uniformly-charged sheet is found to be 3\times 10^{-5}~\text{n}\cdot\text{m}^2/\te xt{c}3×10 −5 n⋅m 2 /c when the area is parallel to the sheet of charge. find the charge density on the sheet.

Explanation:

Given

side of square shape

Electric flux

Permittivity of free space

Flux is given by

where E=electric field strength

A=area

=Angle between Electric field and area vector

and Electric field  by a uniformly charged sheet is given by

where =charge density

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.