A positive point charge Q is fixed on a very large horizontal frictionless tabletop. A second positive point charge q is released from rest near the stationary charge and is free to move. Which statement best describes the motion of q after it is released? a. As it moves farther and farther from Q, its speed will keep increasing. b. As it moves farther and farther from Q, its speed will decrease. c. As it moves farther and farther from Q, its acceleration will keep increasing. d. Its speed will be greatest just after it is released. e. Its acceleration is zero just after it is released.

As it moves farther and farther away from Q, it's speed will keep increasing.

Explanation:

This is so because the point charges are both positive charges and positive charges repel.

As the charges repel, they do so at an increasing speed.

mistakes are ok

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.