A truck accelerates at a rate of 14 m/s2 . The truck weighs 17000 kg . What is the amount of force necessary for the truck to accelerate at this rate? A. 24,285 N

B. 23,800 N

C. 238,000N

D. 1,214N

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