A steel rod is 4.000cm in diameter at 30 degree Celsius.A brass ring has an interior diameter of 3.992 cm at 30 degree Celsius.In order that the ring just slides onto the steel rod, the common temperature of the two should be(coefficient of steel is 11×10^-6) ( coefficient of brass os 19×10^-6)
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A steel rod is clamped at its two ends and rests on a fixes horizontal base. The rod is unstrained at 20C. Find the longitudinal strain debeloped in the tod if the temperature tises to 50C. Coefficient of linear expansion of steel =1.2×10−5C0(−1).
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