A part at Belleh Fontem Manufacturing requires holes of the size 0.50plus or minus0.01 inches. The drill bit has a stated size of 0.50plus or minus0.005 inches and wears at the rate of 0.00017 inches per hole drilled. Give the most and least number of holes that can be drilled with one drill bit before it has to be replaced.

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