A monkey trapped in a metal cage has a mass of 50 kg. If this cage is being pulled down a 30-meter long inclined plane from rest by a gorilla
with a force of 1200 N, what was the height of the ramp? The force of
friction is 200 N, and the velocity at the bottom of the ramp is 40 m/s.

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