A child, m = 25.0 kg, swings from a rope, L = 5.2 m, which hangs above water, d = 1.1 m, when vertical. The child is h = 8.8 m above the water when she begins to swing. Assume the child lets go at the bottom of the swing. How long does she take to reach the water, t in seconds?

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.

more than, less

less than, more