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hoa [83]
2 years ago
14

Why do production possibilities curves only compare two different goods or services?

Geography
1 answer:
Vera_Pavlovna [14]2 years ago
3 0

Answer: The production possibilities curve (PPC) is a graph that shows all of the different combinations of output that can be produced given current resources and technology. Sometimes called the production possibilities frontier (PPF), the PPC illustrates scarcity and tradeoffs.

Explanation:

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1. Calculate the angle of the noon sun above the horizon right here at Placerita Canyon, which is at ~34N. Use the analemma on
vovikov84 [41]

Answer:

The latitude at which the noon sun is directly overhead is defined as the sun's declination. For example, if the sun appears directly overhead at 20°N latitude, the sun's declination is thus 20°N. Figure 7-3, known as analemma, shows the declination of the sun throughout the year. Thus, if you would like to know where the sun will be directly overhead on September 20, you can look on the analemma and find that it will be at 1°N. Given the declination, the noon sun angle at a particular latitude on any given day can be calculated.

Figure 7-3. The analemma, a graph illustrating the latitude of the overhead noon sun throughout the year.

Figure 7-4 shows that for each degree of latitude that the place is away from the latitude where the noon sun is overhead (declination), the angle of noon sun becomes one degree lower from being vertical (or 90°) above the horizon. Noon sun angle for any given latitude on any given day can be calculated using the following equation:

Noon Sun Angle = 90° - (Latitude +/- Declination)

In this equation, use " - " when the latitude and declination are on the same hemisphere and use " + " when they are on the opposite hemispheres. For example, on April 11, the declination is 8°N, the noon sun angle at Springfield, Illinois (40N) on April 11, therefore, should be 58° (90° - (40°N - 8°N).

Figure 7-4. Noon sun angle calculation. The example in this figure illustrates how to calculate the noon sun angle for a city 40° north of the equator (like Springfield, Illinois) on December 22.

Questions

Based on Figure 7-3, the sun shifts its position between which two important latitudes (find the terminologies for these two latitudes in Fig. 7-4). (2 points)

Using the analemma (Fig. 7-3), determine the declinations on each of the following dates. (6 points)

August 10 _________________

September 21 _______________

June 21 ______________

October 15 ____________

December 22 ______________

March 21 _________________

Calculate the noon sun angle in Grayslake, Illinois on each of the dates listed below. (6 points)

Noon Sun Angle in Grayslake on

August 10 _________________

September 21 _______________

June 21 ______________

October 15 ____________

December 22 ______________

March 21 _________________

Obtain the average temperature in Grayslake on each of the dates listed below using a weather station online. (6 points)

Average Temperature in Grayslake on:

August 10 ________________

September 21 _______________

June 21 _____________

October 15 ____________

December 22 ______________

March 21 _________________

Plot the noon sun angle and temperature on each of the dates you obtained in Questions 3-4 on the graph provided below and connect your temperature and noon sun angle plots using smooth lines. Discuss the relationship between noon sun angles and average temperature in Grayslake throughout the year based on your graph. Use the right vertical axis to show temperature variation from -30° F at bottom and +105° F on top (label temperature value at equal amount interval in between: 2 units for every 5°F). Use the left vertical axis to show noon sun angle, with 0° at the bottom and 90°F on top (label noon sun angle value at equal amount intervals in between: every 3 units per 10°). (4 points)

J F M A M J J A S O N D

Months

Figure 7-5. Variation of temperature and noon sun angle in Grayslake.

brief paragraph summarizing the yearly movement of the overhead noon sun and how the intensity of insolation aries in Grayslake throughout the year. (2 points)

Calculate the maximum, minimum, and average noon sun angles at the place in Grayslake. Show your calculations. (3 points)

Maximum noon sun angle:

Minimum noon sun angle:

Average noon sun angle:

When the noon sun is directly overhead a ship in the Pacific Ocean on October 16, the ship's latitude is _____________. Explain your answer. (2 points)

8 0
3 years ago
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