Which example is not a part of the electromagnetic spectrum? a) microwaves b) radio waves c) electricity d) purple light

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Which branches of natural science include the study of an organism that lived 10 million years ago

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