A snug-fitting belt is placed around the Earth's equator. Suppose you added an extra 1 meter of length to the belt, held it at a point, and lifted until all the slack was gone. How high above the Earth's surface would you then be? That is, find h in the diagram below.
Assume that the Earth is a perfect sphere of radius 6400 km, and that the belt material does not stretch. An approximate solution is acceptable.
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A sphere of radius 49 cm is divided into 4 equal parts from center. What would be the total surface area of one of such quarter sphere?
My first lifted men high above the clouds. My second may cause one to cry out loud. My whole may occur in front of a crowd. What am I?
