The 2014-T6 aluminum hollow column is fixed at its base and free at its top. Determine the...

The 2014-T6 aluminum hollow column is fixed at its base and free at its top. Determine the maximum eccentric force P that can be safely supported by the column. Use the interaction formula. The allowable bending stress is (σb)allow = 30 ksi. The thickness of the wall for the section is t = 0.5 in.