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Problem 3: Thermal expansionThe steel rod has the length 2 m and cross-section area 200 cm2at the room temperature 20◦C. Weapply the heat source and the temperature of the rod increases. The coefficient of linear expansion isα= 2×10−6K−1.a) What is the new length of the rod if the temperature jumps to 80◦C?b) What is the percentage of the volume change of the rod?c) What is the maximal temperature we can allow if the volume should not increase by more thanhalf percent?
Answers: 3
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Problem 3: Thermal expansionThe steel rod has the length 2 m and cross-section area 200 cm2at the ro...
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