A satellite was launched in order to observe the Saturn. At the moment the distance between the satellite and the Saturn was
10 km with an attractive force 10,000 N. While after 20
seconds, the distance decreased to 5 km, what is the force
then (in N)?

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.

a sonic boom is a loud boom that breaks the sound barrier

explanation: