Agremlin is a tiny mythical creature often blamed for mechanical failures. suppose for a moment that a shrewd physicist catches one such gremlin and makes it work for her instead of against her. she determines that the gremlin can produce 24 milliwatts of power. how many gremlins are required to produce 24,000 megawatts of power?

a billion (1,000,000,000) gremlins

Explanation:

since 1 milliwatt is 0.001 watt you'd need 1,000 gremlins to produce 24 watts

since 1 megawatt is 1000 watts you'd need 1,000*1,000 = 1,000,000 gremlins to produce 24 megawatts

to produce 24,000 megawatts you'd need to multiply that for another 1,000

so 1000*1000*1000 = 1,000,000,000

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.