How long is the shadow 4 meters high from winter to morning at 37.5 degrees north latitude?

On the solstice of winter, the sun shines directly on the tropic of Capricorn at 23.5 degrees south latitude? At noon, 37.5 degrees north latitude, what is the height of the sun? 90 degrees minus the latitude difference? That is 90-(23.5+37.5)=29 degrees? About 30 degrees? So the shadow length is 4m/tan30 degrees =4/√3/3=6.928.

65438+February 265438+ 0, 22 or 23 every year. The direct point of the sun is on the tropic of Capricorn, with the longest day and the shortest night in all parts of the southern hemisphere. The higher the latitude in the southern hemisphere, the longer the day and the shorter the night, and the phenomenon of extreme day appears in the Antarctic circle. In the Arctic Circle, there is a phenomenon of extreme night. The farther away from the tropic of Capricorn on the earth, the more inclined the sun's rays are, and the less solar heat is obtained.

In contrast, the southern hemisphere gets more heat than the northern hemisphere at this time. Because the energy radiated by the sun to the ground is still less than that radiated by the ground to the air, the temperature continues to drop in a short time. Generally, three months in the northern hemisphere (12, 1 2) are winter and summer in the southern hemisphere. Point of direct sunlight: 23.44 degrees south latitude.