Two meshing 24-pitch, 25° pressure angle gears have n1-24 and n2 60 teeth. the in use center distance of the two gears is 0.16 inches larger than the design value of the center distance. what are the design value and in use value of the radius of the pitch circle of gear 1?

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