Aman is out fishing with his daughter. they are initially sitting at opposite ends of their 3.00-m canoe, which has a mass of 60.0 kg and is at rest in the middle of a calm lake. the man and the daughter then carefully trade places. we will neglect any resistive forces between the canoe and the water.

a)

use these numbers: the mass of the man is 75.0 kg, and the mass of the daughter is 25.0 kg.

how far has the canoe moved, once the man and his daughter have finished trading places? 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