Solve each problem.
Railroad Engineering The term grade has several different meanings in construction work. Some engineers use the term grade to represent of a right angle and express grade as a percent. For instance, an angle of 0.9° would be referred to as a 1% grade. (Source: Hay, W., Railroad Engineering, John Wiley and Sons.)
(a) By what number should you multiply a grade (disregarding the % symbol) to convert it to radians?
(b) In a rapid-transit rail system, the maximum grade allowed between two stations is 3.5%. Express this angle in degrees and radians.
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