A 2 kg bullet hits a 19.8 kg block of wood at rest. If the bullet sticks into the wood and sends the block flying at 10.8 m/s away what wa the velocity of the bullet?
Round your answer to the nearest hundredth and don't forget your units

c.the charges if the proton and electron and gravity

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.