Which three ancient scholars seemed to make the connection between thing like allergens

Describe the path of a ray that approaches a mirror parallel to the principal axis.

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?

Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above