A) jakä… dĺ‚ugoĺ›ä‡ powinien mieä‡ mieä‡ bok kwadratu , aby pole tego kwadratu byĺ‚o răłwne polu prostokä…tu o wymiarach 3cm x 4cm ? wynik podaj z dokĺ‚adnoĺ›ciä… do 1mm. b) jakä… dĺ‚ugoĺ›ä‡ ma krawä™dĺş szeĺ›cianu , ktăłrego ma objä™toĺ›ä‡ jest răłwna objä™toĺ›ci prostopadĺ‚oĺ›cianu o wymiarach 2cm x 4cm x 5 cm ? wynik podaj z dokĺ‚adnoĺ›ciä… do 1mm.

Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2