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Title: A steel bar with a cross-sectional area of 1.00 × 10-4 m2 is heated to 100°C and then it is ... Post by: Brelou on Feb 24, 2017 A steel bar with a cross-sectional area of 1.00 × 10-4 m2 is heated to 100°C and then it is clamped at both ends with clamps that are 2.0 m apart. When the bar cools to 20°C what is the force exerted by the bar on the clamps? The coefficient of thermal expansion of steel is
12 × 10-6 K-1 and Young's modulus for steel is 20 × 1010 N/m2. A) 1.9 × 104 N B) 3.8 × 104 N C) 1.9 × 103 N D) 3.8 × 103 N E) 1.9 × 105 N Title: Re: A steel bar with a cross-sectional area of 1.00 × 10-4 m2 is heated to 100°C and then it is ... Post by: Raj.S on Feb 24, 2017 Content hidden
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