In 6 days, the temperature dropped 18 degrees. how many degrees per day did the temperature drop?i only have 30 more min to do it ?

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

If y gets smaller as x gets bigger and y have an relationship?

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