2. What is the angle of refraction for light entering water from air when the light strikes the water at 20° to the normal? The index of refraction of air is 1 and 1.33
for water.
a) 22.70
b) 5.90
C) 12.9°
d) 14.90
e) 54.30

Distinguish between a transverse wave and a longitudinal wave.

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat