Aroller coaster is traveling at 13m/s when it approaches a hill that is 400 m. long. heading down the hill, it accelerates 4.0m/s^2 . what is the final velocity of the roller coaster?

58.0 m/s

Explanation:

We can solve the problem by using the following SUVAT equation:

where

v is the final velocity of the roller coaster

u = 13 m/s is the initial velocity

a = 4.0 m/s^2 is the acceleration

s = 400 m is the displacement

Substituting and solving for v, we find

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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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.