This is for criminal law:
jerry walks up to jill, a former girlfriend, and tells her, "tomorrow when i get my paycheck, i'm going to buy a gun and kill you." jill immediately gets a gun out of her car and kills jerry. jill: claims she killed in self-defense.
1. is this a valid self-defense?
2. why or why not?

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

An atom that has gained or lost electrons is called an _

If a 2 ounce coin is dropped from the top of the washington monument and has a final velocity of 300 mph (miles per hour) when it hits the ground, how much kinetic energy will it have at that time?