PLS HELP ME I DONT HAVE MUCH TIME LEFT
The Euler buckling load of a 160-cm-long column will be _____ times the Euler buckling load of an equivalent 120-cm-long column.


1.78


0.56


0.75


2.37


1.33


0.42

Calculate the minimum area moment of inertia for a rectangular cross-section with side lengths 3 cm and 8 cm.


201 cm4


18 cm4


128 cm4


4 cm4


24 cm4