What is the electric potential energy of an electron at the negative end of the cable, relative to the positive end of the cable? In other words, assume that the electric potential of the positive terminal is 0 V and that of the negative terminal is −12V. Recall that e=1.60×10−19C.

Explanation:

charge of electron, e = 1.6 x 10^-19 C

V1 = 0 V

V2 = -12 V

Change in potential, ΔV = V1 - V2 = 0 - ( - 12) = 12 V

potential energy, U = q x ΔV

U = 1.6 x 10^-19 x 12

U = 1.92 x 10^-18 J

insects!

explanation:

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.