Which description matches up correctly with each type of particle? alpha - no mass and no charge; beta - mass of 4 and charge of +2; gamma - charge of -1 and mass of 0 alpha - mass of 0 and charge of -1; beta - mass of 4 and charge of +2; gamma - no mass and no charge alpha - mass of 4 and charge of +2; beta - no mass and charge of -1; gamma - no mass and no charge (consists of energy) alpha - no mass and no charge; beta - no mass and no charge; gamma - no mass and no charge

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader