For 4 out 7 of the problems on an assignment do not show number values. For example:
A steel [ ] rod with a circular cross section is long. Determine the minimum diameter required if the rod must transmit a tensile force of without exceeding an allowable stress of or stretching more than .
In the figure, the horizontal rigid beam ABCD is supported by vertical bars (1) and (2) and is loaded at points A and D by vertical forces and , respectively. Bar (1) is made of aluminum [ ] and has a cross-sectional area of and a length of . Bar (2) is made of steel [ ] and has a cross-sectional area of and a length of . Assume dimensions , , and . Determine the deflection of the rigid beam (a) at point A and (b) at point D.
Where there should be numbers there are just blank spaces, I tried the live chat but I was stuck on a wait screen.