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A composite shaft is made of an inner core of steel surrounded by an outer jacket of-titanium. The shaft is subject to a tensile force of 36 kN. Both the steel core and the titanium jacket have the same cross sectional area 636mm² and are fully bonded together so that each takes a certain share of the load. The Young modulus of the inner steel core is 200,000N/mm2 and that of the titanium is 100,000N/mm². Determine the stress in the steel core inN/mm². Round off your answer to two decimal places.

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