An 8000-kg aluminum flagpole 100 m long is heated by the Sun from a temperature of 10°C to 20°C. Find the work done (in J) by the aluminum if the linear expansion coefficient is 24 × 10?6 (°C)?1. (The density of aluminum is 2.7 × 103 kg/m3 and 1 atm = 1.0 × 105 N/m2.)
A. 287
B. 425
C. 213
D. 710
E. 626
Answer: C
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