(Solved): show all work please  1. A rectangular tubular bar with the dimensions shown below supports an ...

1. A rectangular tubular bar with the dimensions shown below supports an axial compressive load of 2 kips. (a) Determine the axial stress in the rectangular tube in \( \mathrm{ksi} \) (b) A circular tubular bar with an outer diameter of 1.5-in. supports the same load, 2 Kips, and is under the same exact amount of stress from the bar in part (a). Using that information, determine the wall thickness, in inches, of the circular bar. NOT TO SCALE 2. Why does the phrase "normal stress" use the term "normal"?