The gravitational force exerted by the Moon on an 82.0-kg astronaut is 129.8 N. The distance of the astronaut above the Moon's surface is km. (mass of the Moon = 7.3483 x 10^22 kg, radius of the Moon = 1.7374 x 10^6 m)

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