One man pushes on the front of a cart while another man pushes on the back of the cart. The cart begins to move forward.
What are three things you know about these two applied forces?

pushes it forward, pushes it backwards and then it moves

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

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.