Author Question: A fish is 2.1 m beneath the surface of a still pond of water. At what maximum angle can the fish ... (Read 148 times)

biggirl4568 · **on:** Jul 28, 2018

A fish is 2.1 m beneath the surface of a still pond of water. At what maximum angle can the fish look toward the surface (measured with respect to the normal to the surface) in order to see a fisherman sitting on a distant bank? (for water, n = 1.333)
a. 18.6
b. 48.6
c. 37.2
d. The fish will not see the fisherman at any angle.

Question 2

What happens to a given mass of water as it is cooled from 4C to zero?
a. expands
b. contracts
c. vaporizes
d. Neither expands, contracts, nor vaporizes.