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In the two$-$dimensional body illustrated, the gradient at surface $A$ is found to be del$\frac{T}{d}$ely$=30\frac{K}{m},$ where $w_A=1\mathrm{.}0m$ and $w_B=1\mathrm{.}4$ m $.$ What are del$\frac{T}{d}$ely and del$\frac{T}{d}$elx at surface $B?$

$(del\frac{T}{d}$ely${)}_B=,\frac{K}{m}$

$(del\frac{T}{d}$elx${)}_B=,\frac{K}{m}$

Physical Properties Mathematical Functions