The stress transformation equations required to determine (a) the normal shear stress perpendicular to the weld and (b) the shear stress parallel to the weld require an angular value that defines the appropriate orientation for this analysis. What is the value of the angle that will be required here

An engine, weighing 3000 n, is supported on a pedestal mount. it has been observed that the engine induces vibration into the surrounding area through its pedestal at the maximum operating speed. determine the stiffness of the dynamic vibration absorber spring in (n/m) that will reduce the vibration when mounted on the pedestal. the magnitude of the exciting force is 250 n, and the amplitude of motion of the auxiliary mass is to be limited to 2 mm note: in this question type-in right numbers, no decimals, no fractions, no unit. approximate to right number if needed