The mass of aluminum ($m_{Al}$) is 25 kg, the mass of iron ($m_{Fe}$) is 80 kg, the specific heat of aluminum ($c_{Al}$) is 920 J/kg°C, the specific heat of iron ($c_{Fe}$) is 460 J/kg°C, the initial temperature ($T_i$) is 20°C, and the final temperature ($T_f$)
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