What are the local solar times (LST) corresponding to the local civil time (LCT) of 09:00 on Oct. 2, 2023 at the places of (a) (115 E, 23 N) and (b) (115 W, 23'S), respectively. (10 points) A surface is tilled toward 10" west to north at a place of (121 E, 22N) on Oct. 2, 2023. Calculate (a) the angle of declination on this day, (b) the angles of incidence and the solar azimuth angles at (i) 1 hour before solar noon and (ii) 3.5 hour after solar noon. (20 points)