Answer :
Without additional context or reference charts, the correct Unfactored Compressive unit stress (Fe) cannot be determined from the slenderness ratio alone. Additional information like material properties and engineering design codes would be required. Option a. it is not possible to determine.
The determination of the correct Unfactored Compressive unit stress (Fe) based on the slenderness ratio requires the use of column buckling equations and material properties. In a typical problem of this nature, Fe would be derived from the Euler buckling formula or a relevant design code that provides the relationship between Fe and slenderness ratio for a specific material and type of column. However, without the specific context or reference charts, it is not possible to pinpoint the exact value of Fe from the slenderness ratio alone. Option A.
The provided data about shear stress and force, as well as information about Poisson's ratio and strain under different types of stress, do not directly inform the calculation of the Fe for a given slenderness ratio. These elements are often seen in mechanics of materials or solid mechanics contexts but are not the determining factors in this specific calculation.
Therefore, to accurately determine the Fe in this case, additional information such as the material properties and applicable formulas from the appropriate design codes or engineering principles would be necessary.