Four charged particles are placed so that each particle is at the corner of a square. the sides of the square are 15 cm. the charge at the upper left corner is +3.0 ? c, the charge at the upper right corner is ? 6.0 ? c, the charge at the lower left corner is ? 2.4 ? c, and the charge at the lower right corner is ? 9.0 ? c. a. what is the net electric force on the + 3.0 ? c charge? b. what is the net electric force on the ? 6.0 ? c charge? c. what is the net electric force on the ? 9.0 ? c charge?

(i) Part 1

Net force on 3 uC charge

Force due to - 6 uC

Force due to -2.4 uC charge

Force due to 9 uC charge

Now net force is given as

Part 2

Net force on -6 uC charge

Force due to 3 uC

Force due to 9 uC charge

Force due to -2.4 uC charge

Now net force is given as

PART 3

Net force on 9 uC charge

Force due to - 6 uC

Force due to -2.4 uC charge

Force due to 3 uC charge

Now net force is given as

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.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle