Each of the two drums and connected hubs of 12-in. radius weighs 200 lb and has a radius of gyration about its center of 35 in. calculate the magnitude of the angular acceleration of each drum. friction in each bearing is negligible.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

The higher the astm grain size number, the finer the gran is. a)-true b)-false

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