2) Red Brown - Cultural features, all relief features, elevation such as contour lines.
3) Blue - Hydrography or water features like lakes, swamps, rivers, and drainage.
4) Green - Vegetation with military significance, such as woods, orchards, vineyards.
5) Brown - All relief features and elevation, contour lines on older maps.
6) Red - Populated areas, main roads, and boundaries, on older maps.
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A football conference has six teams. The outcome of the games is recorded in a binary fashion. For example, if team 1 defeats teams 5 and 6 , then the equation is written to indicate these results. At the end of the season, the wins and loses are tabulated in this fashion to produce the following ranking matrix:
(a) Find the eigenvalues and the corresponding eigenvectors of [A], using MATLAB's built-in function eig. (b) Find the eigenvector from part (a) whose entries are all real and of the same sign (it does not matter if they are all negative or all positive), and rank the teams from best (i.e., with most win) to worst (i.e., with fewest wins) based on the indices of the teams corresponding to the largest to the smallest entries in that eigenvector.
The 150-mm-thick wall of a gas-fired furnace is constructed of fireclay brick and is well insulated at its outer surface. The wall is at a uniform initial temperature of , when the burners are fired and the inner surface is exposed to products of combustion for which and . (a) How long does it take for the outer surface of the wall to reach a temperature of ? (b) Plot the temperature distribution in the wall at the foregoing time, as well as at several intermediate times.