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Exercise 13

Avg difficulty 3.0

Imagine a rope wound around the earth’s equator so that it fits snugly (suppose that the earth is a sphere). How much extra rope must we add so that around the entire world the rope will now be six feet off the ground?

Hefferon, Linear Algebra, Maps Between Spaces, Definition, Exercise 13

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Adapted from Linear Algebra © 2016 Jim Hefferon. Licensed under CC BY-SA 3.0 US. Source: Linear Algebra. Imported at revision df2262e.