Calculate the load that a fibroblast cell applies to buckle a single column in a collagen tissue engineering scaffold, given that the column has a length of 100μm, is circular in cross section, with a diameter of 2μm, and has a Young's modulus of 5MPa. You can assume that the end constraint factor, n, for the column, is 0.6.

Pcr (in nN):

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DN;KDV
answer is 1.393