PROBLEM SET 3 Key.docx - PROBLEM SET 3 Key 1 What is the altitude of the Sun above the northern horizon at noon In Perth Australia on the summer

# PROBLEM SET 3 Key.docx - PROBLEM SET 3 Key 1 What is the...

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PROBLEM SET 3 Key 1. What is the altitude of the Sun above the northern horizon at noon In Perth, Australia on the summer solstice? Assume the attitude of Perth is 31.95 S. Latitude = (Zenith – Altitude) – 23.5 o Altitude = Zenith – (Latitude +23.5 o ) = 90 o – (31.95 o + 23.5 o ) Altitude = 90 o – 55.45 o = 34.55 o 2. What is the latitude of an observer who measures an altitude of the Sun above the northern horizon of 50.0 at noon on the winter solstice? Latitude = (Zenith – Altitude) + 23.5 o = (90 o – 50 o ) + 23.5 o = 40 o + 23.5 o = 63.5 o S 3. On March 1 at a location in the Northern Hemisphere, the sunrise was at 6:35 a.m. and sunset was at 5:50 p.m. On March 31, the sunrise was at 5:45 a.m. and sunset was at 6:25 p.m. What was the average change in the daylight per day, in minutes, during this period? Assume all times are standard time. Take the difference between the length of daylight on the last date and the first date and divide by the number of days. The length of daylight is the difference

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