If 270 watts of power is used in 42 seconds, how much work was done? A. .156 J
B. 6.4 J
C. 267 J
D. 11340 J

D. 11340 J

Explanation:

The amount of work done was 11340.

how do you expect people to write a full essay for you and only get 13 pt you need to give more dude make a change

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.