It starts at position 0 and moves to the right until it arrives at
position 1. It then turns around and stops at position 2.
What is the average velocity of the ghost for the entire trip
if the entire trip takes 7 seconds?
0 -1.42 m/s
-1.42
1.42
O 1.42 m/s

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).

the rearrangement of particles in a physical change. hope this