Imagine rubbing a balloon on your hair or clothes and putting extra electrons on the balloon to give it a negative charge. If you touch the balloon to a wall, it may stick to the wall. Explain why you think this happens.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?

How much work would it take to move a coulomb charge across a 4 volt potential difference?