A cylindrical pressure vessel has a radius of 150 mm and a wall thickness of 2.00 mm. There is an internal pressure of 2.00 MPa. A torque of 3.00 kNm is applied along the axis of the pressure vessel. Yield strength of the steel is 100MPa. Use 3D Tresca criteria, determine whether the pressure vessel will yield.

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