A square steel bar of side length w = 0.27 m has a thermal conductivity of k = 15.2 J/(s⋅m⋅°C) and is L = 2.4 m long. One end is placed near a blowtorch so that the temperature is T1 = 84° C while the other end rests on a block of ice so that the temperature is a constant T2. Part (a)  Input an expression for the heat transferred to the cold end of the bar as a function of time, using A = w2 as the cross-sectional area of the

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Chapter1: Units, Trigonometry. And Vectors
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 A square steel bar of side length w = 0.27 m has a thermal conductivity of k = 15.2 J/(s⋅m⋅°C) and is L = 2.4 m long. One end is placed near a blowtorch so that the temperature is T1 = 84° C while the other end rests on a block of ice so that the temperature is a constant T2.

Part (a)  Input an expression for the heat transferred to the cold end of the bar as a function of time, using A = w2 as the cross-sectional area of the bar. 

 Part (b)  How much energy, in joules, was conducted in 1 hour, assuming T2 = 0° C? 

 Part (c)  Input an expression for the mass of the water melted in 1 hour using Q1 from above and Lf the latent heat of fusion. 

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