Q3: A building in Palo Alto, CA (latitude 37.4 N) has windows facing SSE (South South East) with an azimuth of 67.5 degrees. During what period of the year does direct light from the sun enter the window at sunrise? Assume no obstructions, good weather, and a vanishing solar azimuth (deg) 100 solar diameter. What is the time of sunrise on the first day of the period? And on the last day? What is the insolation on the SSE-facing wall at noon at the equinoxes? [1] Sunrise 60 1 I. What is the time of sunrise on the first day of the period? And on the last day? Solar declination, (deg) 2. What is the insolation on the SSE-facing wall at noon at the equinoxes? Fig.1