Hitting a home run in baseball is difficult, because it requires a lot of force. Most home runs are hit off of fastballs. Which principle about impact force says that this makes sense, and why? (please help!!)

Why is there friction between objects

Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor

Which statement correctly describes the interaction between magnetic poles? north and south poles attract each other. north and south poles repel each other. two north poles will attract each other. two south poles will attract each other.