The two-dimensional object shown in Figure P2.16 is insulated with the exception of two flat portions that are exposed to two different temperatures. The temperature gradient at surface 1 is measured...

The two-dimensional object shown in Figure P2.16 is insulated with the exception of two flat portions that are exposed to two different temperatures. The temperature gradient at surface 1 is measured and found to be ∂T/∂x = 45 K/m. What are ∂T/∂x and ∂T/∂y at surface 2?