1.A torque of magnitude T = 1000Nm is applied at D as shown. Knowing that the diameter of shaft AB is 56 mm and that the diameter of shaft CD is 42 mm, determine the maximum shearing stress in (a) shaft AB, (b) shaft CD.
2.Convert the azimuths from north to bearings, and compute the angles, smaller than 180 degrees between successive azimuths
68o06'42", 133o15'56", 217o44'05", 320o35'18"