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An experiment to determine the convection coefficient associated with airflow over the surface of a thick stainless steel casting involves the insertion of thermocouples into the casting at distances of $8$ and $16$ mm from the surface along a hypothetical line normal to the surface. The steel has a thermal conductivity of $17\frac{W}{m}*K.$ If the thermocouples measure temperatures of $48$ and $40C$ in the steel when the air temperature is $100C,$ what is the convection coefficient?

$h=\frac{W}{m^2}*K$

Physical Properties Mathematical Functions

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