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:

Environmental Scan

The process of systematically examining external and internal environments to identify opportunities, threats, trends, and strategic uncertainties.

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A method of predicting future values such as sales or trends by directly analyzing specific variables or indicators.

Forecast

A prediction or estimate of future trends, events, or conditions, often based on current data or trends.

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The stages or actions that occur between the start and completion of a process, often involving intermediary tasks or decisions.