Suppose the ends of a 30-m long steel beam are rigidly clamped at 0°C to prevent expansion. The beam has a cross-sectional area of 30 cm2 . What force against the clamps does the beam exert when it is heated to 40°C? (?Steel = 1.1 × 10^?5/°C, Ysteel = 20 × 10^10 N/m2)
2.6 × 10^5 N
Physics & Space Science
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Physics & Space Science