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Q: A cylinder of compacted scrap metal measuring 2 m in length and 0.5 m in diameter is suspended from a spring scale at a location where the acceleration of gravity is 9.78 m/s2. If the scrap metal density, in kg/m3, varies with position z, in m, according to 7800 - 360(z/L) 2, determine the reading of the scale, in N.