Write the transient nodal temperature equation for node 1 in Figure P4-88. Also determine the maximum allowable time increment for the node. The right face is exposed to the convection condition shown. Properties for materials A and B are given in the figure.

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Figue P4 88 50 Wind-C Te 10°C cm 1.5 cm k 200 30Wm-C ρ 2700 7800 kg/m3 c 900 800 Jkg-"C