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The depth of the ocean is sometimes measured in fathoms ( 1 fathom \(=6\) feet). Distance on the surface of the ocean is sometimes measured in nautical miles ( 1 nautical mile \(=6076\) feet). The water beneath a surface rectangle 1.20 nautical miles by 2.60 nautical miles has a depth of 16.0 fathoms. Find the volume of water (in cubic meters) beneath this rectangle.

Short Answer

Expert verified
The volume is 31,400,654.63 cubic meters.

Step by step solution

01

Convert Distances to Feet

First, convert the length and width of the rectangle from nautical miles to feet. For the rectangle's length:\[1.20 \text{ nautical miles} \times 6076 \text{ feet per nautical mile} = 7287.2 \text{ feet}\]For the rectangle's width:\[2.60 \text{ nautical miles} \times 6076 \text{ feet per nautical mile} = 15797.6 \text{ feet}\]
02

Convert Depth to Feet

Now, convert the depth from fathoms to feet:\[16.0 \text{ fathoms} \times 6 \text{ feet per fathom} = 96 \text{ feet}\]
03

Calculate Volume in Cubic Feet

Calculate the volume of water in cubic feet by multiplying the length, width, and depth:\[7287.2 \text{ feet} \times 15797.6 \text{ feet} \times 96 \text{ feet} = 1108403123.52 \text{ cubic feet}\]
04

Convert Volume to Cubic Meters

To convert cubic feet to cubic meters, use the conversion factor: 1 cubic foot = 0.0283168 cubic meters.\[1108403123.52 \text{ cubic feet} \times 0.0283168 \text{ cubic meters per cubic foot} = 31400654.63 \text{ cubic meters}\]
05

Final Result

The volume of the water beneath the given rectangle is \(31,400,654.63\) cubic meters.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Unit Conversion
Understanding unit conversion is essential, especially when dealing with measurements of different magnitudes. Unit conversion allows us to translate a measurement in one unit to its equivalent in another, facilitating calculations and comparisons.

For conversions, using the right conversion factor is a must. These factors are based on defined standards, like 1 fathom equals 6 feet, or 1 nautical mile equals 6,076 feet.
  • Always identify the units to be converted from and to.
  • Use multiplication or division depending on whether you are converting to a larger or smaller unit.

For instance, in your calculation, ensure the resulting numbers maintain a logical scale and set the stage for further calculations, like volume in a different unit.
Fathoms to Feet
A fathom is a unit traditionally used to measure depth. One fathom is defined as exactly 6 feet. This makes fathoms particularly useful in maritime contexts for denoting the depth of water.

When converting fathoms to feet, you simply multiply the number of fathoms by 6. For example, if the ocean depth is 16 fathoms, the equivalent depth in feet is calculated as follows:
  • 16 fathoms multiplied by 6 feet per fathom equals 96 feet.

This straightforward conversion highlights the simplicity of switching between the two units. Understanding this conversion is crucial for accurate maritime measurements and calculations.
Nautical Miles to Feet
Nautical miles are used primarily in navigation, and they differ from regular miles. 1 nautical mile is approximately equal to 6,076 feet. This conversion is vital when calculating distances related to bodies of water.

For example, if you're given a distance in nautical miles, converting to feet requires multiplying by 6,076. As demonstrated in the problem, if the rectangle's sides are 1.20 and 2.60 nautical miles, respectively, the conversions are:
  • 1.20 nautical miles times 6,076 feet equals 7,287.2 feet.
  • 2.60 nautical miles times 6,076 feet equals 15,797.6 feet.

These calculations are essential to find volumes or areas involving large sea distances.
Cubic Meters
The cubic meter is a standard unit of volume in the International System of Units (SI). It's equal to the volume of a cube with sides of one meter. Converting other volume measures to cubic meters is often necessary for scientific calculations.

To convert cubic feet to cubic meters, the conversion factor 1 cubic foot = 0.0283168 cubic meters is used. For example, when calculating the volume of water beneath a surface rectangle, you first determine it in cubic feet and then convert it.
For a given problem:
1108403123.52 cubic feet are converted by multiplying with 0.0283168, resulting in 31,400,654.63 cubic meters.
  • The simplicity of multiplying with a standard factor aids in reliable unit conversion.
Knowing these conversions helps in applying volume calculations accurately across different systems.

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