Sometimes it is easier to complete Step 1 by visualizing the degree distance between two points on the same latitude by plotting the two points on a graph. Figure 1.4 provides an example: if you want to calculate the distance between 90°W and 30°E, you can mark these on the graph. Once you plot the two locations, you can calculate the total longitudinal distance between the locations. 90° W 30° E 180° W 0° 180° E 90°W +30°E= 120° of Total Distance Figure 1.4: Example of How to Calculate Longitudinal Distance. 4. At 60°N, how many miles are between 30°W and 50°E? Show your equation(s). Degrees, Minutes, and Seconds The primary unit in which latitude and longitude are observed is degrees. As learned earlier, the distance of these degrees can be quite large, which is why it is important that the subdivision of a degree be understood. There are two formats for subdividing a degree Degrees-Minutes-Seconds (DMS) and Decimal Degrees. DMS: To understand the DMS format, you must know that ° is the abbreviation for degrees, ' is the abbreviation for minutes, and " is the abbreviation for seconds. Fach dearee can be divided into 60 egual narts calleda minute

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Chapter2: Second-order Linear Odes
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Question 4. At 60 degrees N, how many miles are between 30 w and 50 E?
Sometimes it is easier to complete Step 1 by visualizing the degree distance between
two points on the same latitude by plotting the two points on a graph. Figure 1.4
provides an example: if you want to calculate the distance between 90°W and 30°E, you
can mark these on the graph. Once you plot the two locations, you can calculate the
total longitudinal distance between the locations.
90° W
30° E
180° W
0°
180° E
90°W +30°E= 120° of
Total Distance
Figure 1.4: Example of How to Calculate Longitudinal Distance.
4. At 60°N, how many miles are between 30°W and 50°E? Show your equation(s).
Degrees, Minutes, and Seconds
The primary unit in which latitude and longitude are observed is degrees. As learned
earlier, the distance of these degrees can be quite large, which is why it is important that
the subdivision of a degree be understood. There are two formats for subdividing a
degree Degrees-Minutes-Seconds (DMS) and Decimal Degrees.
DMS:
To understand the DMS format, you must know that ° is the abbreviation for degrees, ' is
the abbreviation for minutes, and " is the abbreviation for seconds.
Fach dearee can be divided into 60 egual narts calleda minute
Transcribed Image Text:Sometimes it is easier to complete Step 1 by visualizing the degree distance between two points on the same latitude by plotting the two points on a graph. Figure 1.4 provides an example: if you want to calculate the distance between 90°W and 30°E, you can mark these on the graph. Once you plot the two locations, you can calculate the total longitudinal distance between the locations. 90° W 30° E 180° W 0° 180° E 90°W +30°E= 120° of Total Distance Figure 1.4: Example of How to Calculate Longitudinal Distance. 4. At 60°N, how many miles are between 30°W and 50°E? Show your equation(s). Degrees, Minutes, and Seconds The primary unit in which latitude and longitude are observed is degrees. As learned earlier, the distance of these degrees can be quite large, which is why it is important that the subdivision of a degree be understood. There are two formats for subdividing a degree Degrees-Minutes-Seconds (DMS) and Decimal Degrees. DMS: To understand the DMS format, you must know that ° is the abbreviation for degrees, ' is the abbreviation for minutes, and " is the abbreviation for seconds. Fach dearee can be divided into 60 egual narts calleda minute
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