A 2.00 KG brick falls from the top of a building 6.00 M above the ground. What is the kinetic energy of the brick just before it reaches the ground

the kinetic energy of the brick before it reaches the ground is 117.6 J.

Explanation:

Given;

mass of the brick, m = 2 kg

height of the building, h = 6 m

The kinetic energy of the brick before it reaches the ground is maximum.

Based on the principle of conservation of energy, the maximum potential energy = maximum kinetic energy

K.E = P.E = mgh

where;

g is the acceleration due to gravity = 9.8 m/s²

K.E = 2 x 9.8 x 6

K.E = 117.6 J

Therefore, the kinetic energy of the brick before it reaches the ground is 117.6 J.

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

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.