Question

# BACKGROUND INFO: The location of Springfield, IL is 40N and 90W,...

BACKGROUND INFO:

The location of Springfield, IL is 40N and 90W, answer the following questions

1)  When Springfield's day light time is about 9 hours during winter, what is the Sun-angle in Springfield? Use the calculation to explain

2)  What is the date during a year from which the sun-angle in Springfield starts to decrease? Explain

3)   Calculate the noon sun angles at the following locations on March 21-22.

• Springfield, IL:

• A place on the equator:

• Dikson, Russia (73N, 103W):

4)   Explain at least two (2) reasons on why at any given time on Equinoxes Springfield, with smaller sun angle, receives less intense solar radiation than any place on the equator does

5)        Which of the three places mentioned in Question 3) receives the greatest amount solar radiation during 24 hours on June 21-22? Explain

6) Sailing along 10°N latitude in November, a sailor observes the noon sun to the south at 60° above the horizon. What is the date? Use calculation to explain answer

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