An object is being swung with a centripetal force of 40 N on a length of rope. If the object weighs 4 kilograms and is moving with a tangential velocity of 18 m/s, how long is the rope?

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.

it breaks and dirupture other materials and other sencews from the bottom

not too sure thinking all accelerations are pointed down

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank