The sun paths in Figure R67 are for 33S N latitude and the l

The sun paths in Figure R6.7, are for 33S N latitude, and the location is at 88.5° W longitude. Answer the following questions:

(a) What is the altitude angle at solar noon on June 21?

(b) How many hours of daylight are there in the shortest day?

(c) How many hours of daylight are there in the longest day?

(d) At solar noon on June 21, how long a shadow would a 100-ft flagpole cast?

(e) If the latitude were increased to 50°

The sun paths in Figure R6.7, are for 33S N latitude, and the location is at 88.5° W longitude. Answer the following questions:

(a) What is the altitude angle at solar noon on June 21?

(b) How many hours of daylight are there in the shortest day?

(c) How many hours of daylight are there in the longest day?

(d) At solar noon on June 21, how long a shadow would a 100-ft flagpole cast?

(e) If the latitude were increased to 50° N latitude, would the hours of daylight for December 21 be more or less?

Solution

a) The altidue angle is 70.9416

b) 10 hours are for the shortest day

c)14 hours are for the longest day

d) 100 tan (incident angle) = 100 tan( 30 ) = 577 feet

e) It would be decreased and daylight hours would be 8.