A person rolls a 7 kg bowling ball down a lane in a bowling alley. The lane is 18 m long. The ball is traveling at 7 m/s when it leaves the person's hand.
What is the ball's kinetic energy at this point?
A. 25 J
B. 172 J
C. 343 J
D. 19 J

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).

and 1and 1

d. air pressure decreases as altitude increases.