The height of a door knob above the floor is approximately?

yes this is an actual question from my physics review. a step by step on how the answer is found would be for full understanding. you.

Apossible explanation for a set of facts that can be tested by further investigation is called

You can decrease the resistance of a length of wire by

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