Learning Goal:

twist, and to determine the maximum applicable torque given a maximum allowable angle of twist.

has an inner diameter of d$\_($i$)=0\mathrm{.}8$in$.$ External torques are applied to the rod at point B and point C$.$ Let L$\_($A$)=59\mathrm{.}0$in$,$L$\_($B$)=45\mathrm{.}0$in$,$d$\_($A$)=3\mathrm{.}3$in$,$d$\_($B$)=2\mathrm{.}1$in$,$T$\_($B$)=8\mathrm{.}0$kip$*$ in$,$ and T$\_($C$)=20\mathrm{.}0$kip$*$ in $.$

Part A $-$ Angle of twist at point B

Determine the angle of twist, $\backslash$phi $\_($B$),$ experienced by the rod at point B$.$

Express your answer to three significant figures and include appropriate units.

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Part B $-$ Angle of twist at point C

Determine the angle of twist, $\backslash$phi $\_($C$),$ experienced by the rod at point C$.$

Express your answer to three significant figures and include appropriate units.

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$\backslash$phi $\_($C$)=$

Part C $-$ Angle of twist at point C if segment BC were solid instead of hollow

Determine the angle of twist, $\backslash$phi $\_($C$),$ experienced by the rod at point C if the segment BC is solid rather than hollow.

Express your answer to three significant figures and include appropriate units.

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$\backslash$phi $\_($C$)=$