An 8000-kg aluminium flagpole 100-m long is heated by the sun from a temperature of 10$\degree$C to 20$\degree$C. Find the work done (in J) by the aluminium if the linear expansion coefficient is 24 * 10-6 ($\degree$C)-1. (The density of aluminium is 2.7 *103 kg/m3 and 1 atm = 1.0* 105 N/m².)

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The Answer of An 8000-kg aluminium flagpole 100-m long is heated by the sun from a temperature of 10$\degree$C to 20$\degree$C. Find the work done (in J) by the aluminium if the linear expansion coefficient is 24 * 10-6 ($\degree$C)-1. (The density of aluminium is 2.7 *103 kg/m3 and 1 atm = 1.0* 105 N/m².)

An 8000-Kg Aluminium Flagpole 100-M Long Is Heated by the Sun