Billy is trying to reflect a laser from a mirror at the end of a basketball court into Sam's eyes to distract him (Billy is evil). Sam is at a 38 degree reflected angle from the mirror. At what angle does Billy need to shine the laser at the mirror to get it in Sam's eyes. A. 180 degrees
B. 38 degrees
C. 90 degrees
D. 12 degrees

What is the difference between electrically neutral objects and electrically charged objects

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.