The applied torque on shaft $CD$ is $T^{\text{'}}=55N*m.$ The journal bearings $B,C,$

and $D$ allow free rotation of the shafts, and the motor provides a fixed support.

$($Figure $1)$

Figure

Part A

Determine the absolute maximum shear stress in shaft $AB.$

Express your answer to three significant figures and include the

appropriate units.

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Part B

Determine the absolute maximum shear stress in shaft $CD.$

Express your answer to three significant figures and include the

appropriate units.

$({}_{CD}{)}_{\text{m}\text{a}\text{x}}=$