Apicture window has dimensions of 1.40 m×2.50 m and is made of glass 6.00 mm thick. on a winter day, the outside temperature is -18.0 ∘c , while the inside temperature is a comfortable 19.5 ∘c a) at what rate is heat being lost through the window by conduction? express your answer using three significant figures. b) at what rate would heat be lost through the window if you covered it with a 0.750 mm-thick layer of paper (thermal conductivity 0.0500 w/m⋅k)? express your answer using three significant figures.