As Shown in the Figure, a Laser Positioned on a Ship

question 53

Multiple Choice

As shown in the figure, a laser positioned on a ship is used to communicate with a small research submarine resting on the bottom of a lake. The laser is positioned $12 \mathrm {~m}$ above the surface of the water, and it strikes the water $20 \mathrm {~m}$ from the side of the ship. The water is $58 \mathrm {~m}$ deep and has an index of refraction of $1.33$ . How far horizontally is the submarine from the side of the ship?
(Assume all numbers are accurate to three significant figures.)

• A) \(89 \mathrm {~m}\)
• B) \(69 \mathrm {~m}\)
• C) \(79 \mathrm {~m}\)
• D) \(59 \mathrm {~m}\)
• E) \(49 \mathrm {~m}\)

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Definitions:

Heterozygous

Having two different alleles of a particular gene or genes, resulting in genetic variation.

Homozygous Dominant

An individual possessing two identical dominant alleles for a particular trait.

Monohybrid Cross

Cross between parents that differ in only one trait.

Phenotypic Ratio

The proportional relationship between the different phenotypes (observable traits) produced by a genetic cross, often expressed in simplest whole numbers.