a: The magnitude of the shear stress at r=3in (outer fiber of shaft) is? b: The magnitude of the maximum shear stress in the shaft is? c: The location within the cross-section of the shaft where the maximum shear stress occurs is at r=_____in (measured from the center of the shaft).

QUESTION 5 The solid shaft as shown in Figure 5 is made of material that has an allowable stress of [X(45)+20]MPa. Determine the required diameter of the shaft to the nearest mm. Given the value of X=7 and Y=5 15 N-m 25 N-m 30 N-m Figure 5 60 N-m 70 N-m

Part A A shaft is made of an aluminum alloy having an allowable shear stress of Tallow = 104 MPa. (Figure 1) The diameter of the shaft is 115 mm. Determine the maximum torque T that can be transmitted. Express your answer to three significant figures and include appropriate units. HA T = Value Units Submit Request Answer Part B Figure 1 of 1 What would be the maximum torque T' if a 75-mm-diameter hole were bored through the shaft? Express your answer to three significant figures and include appropriate units. .T µA ? T' = Value Units

800 lb/ft 6 ft 6 t 6 t 4.5 ft 4.5 ft The height of the triangle at cut Cis (answer to 3 sig fig) point load for a cut a cuta C stocated