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2.) Stainless steel rod is used as part of machine which will be rotated 3000 cycle /min under 3000 N. The steel rod diameter

2.) Stainless steel rod is used as part of machine which will be rotated 3000 cycle /min under 3000 N. The steel rod diameter is 25 mm and length is 300 mm. a.) Calculate the time that spare part will not broke? Answer: 50 minutes b.) Please offer new dimension for that cylindrical part to be able to not break. Answer: diameter: 28.9 mm

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