For the position vs. time graph below, describe the motion of each section of the motion. State the direction of the object's motion (forward or backward) and whether or not the object is accelerating.

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

heats surface water up