The solid cylindrical rotor b has a mass of 52 kg and is mounted on its central axis c-c. the frame a rotates about the fixed vertical axis o-o under the applied torque m = 44 n·m. the rotor may be unlocked from the frame by withdrawing the locking pin p. calculate the angular acceleration of the frame a if the locking pin is (a) in place and (b) withdrawn. neglect all friction and the mass of the frame.

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