An underwater scuba diver sees the Sun at an apparent angle of 45.0 from the vertical. How far is the sun above the horizon? (nwater = 1.333)
a. 19.5
c. 48.2
b. 68.0
d. 41.8
Question 2
What happens to a volume of water when its temperature is reduced from 8C to 4C?
a. density increases
c. density remains constant
b. density decreases
d. vaporizes