Why would solar energy be an unlikely energy source for
people living at the poles?
A. The poles are too cold during the
winter.
B. The poles have 6 months of darkness
OUTHERN OCEAN
each year.
90E
C. The poles have too much ice and snow.

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