please answer all parts with explanations

$1$S$17-$A rigid bar is hanging in the ceiling by thrce wires as shown in theTigure and the bar is carrying a concentratcd load of $1$ ton, neglectthe bar weipht and, assumethatA$-$;$18-13$A$-1$:$2$Where E is the modulus ofclasticity, A is the crosssectional area, and Lis thelength of the wire.wire isA$-1$:$2$E$,=2$E$,=3$E$,$A$,=2$A$,=3$A$,21-$A$-$ MetalL, $=$ LThe ratio between the elongation $"$aL$"$ in first wire andsecond wire is$22-24-$The rcaction Fj in ton isThe reaction F; in ton isFor the figureshown in the$25=$LyThe reaction Fy in ton ishatched plan$2619.$ The ratio between the clongation $"$L$"$ in first wire and third$20-$ It is recommended to design the reinforced beam to beA$-$ BalancedB$-$ OverUnderreinforcedB$-28-$B$-1$:$1$Because the steel is in the beam $..*$B$-1$:$1$A$-105($comp$)$DuctilemA$-195($comp$)$ B$-125($ten$)15$tA$-105($comp$)29-$The samc qucstion as $(23)$A$-55($ten$)30$EA$-55($ten$)$F$1$The normal stress in ton$/$n$\text{'}$ at point $(1)$ isB$-125($ten$)$A$-195($omp$)$The sane quaion as $(25)25($comp$)(1$V$5$tC$-1$:$9$The samc question as $(27)$B$-25($ten$)$The linc connect between points of rmaxirnun tersiGr andmaximum compression stress on the hatched plarn is line$)-3)$A$-(1)-(4)|$ B$-()-(2)(2)(3)1$:$9$The nornal stress in ton$/$m$"$ at point $(2)$ isA$-105($comp$)25($comp$)$V$1$tThe same question as $(29)$B$-25($ten$)$C$-$ BrittleP$513-15$n$27-$ The nomal stress in tonm at point $(3)$ isA$-105($comp$)$ B$-25($ten$)175($comp$)175($comp$)$C$125($ten$)$C$-125($ten$)$The normal stress in ton$/$m at point $(4)1$s$|$B$-25($ten$)$S$25($ten$)$A$25($ten$)$D$-$C$45($comp$)$D$-$C$45($comp$)13$o$-1$:$5$D$-1$:$5$D$-$ NeitheroneD$-$ NeitheroneD$-(2)-4)$D$-195($ten$)$D$-195($en$)$D$-25($ten$)$D$-25($ten$)$D$-145($ten$)$D$-145($tes$)$A$5($comp$)$reinforced$23$