2. What are the 2 ways waves transfer energy? What are the differences between a longitudinal wave and a transverse wave?

An ambulance emits a frequency of 450 hz from its siren. what frequency is heard by a man as the ambulance moves toward him? less than 450 hz more than 450 hz 450 hz 0 hz

When fat comes in contact with sodium hydroxide, it produces soap and glycerin. determine whether this is a physical change or a chemical change. explain your answer

Identify the type of synthetic material used in each object