Two boats - Boat A and Boat B - are anchored a distance of 20 meters apart. The incoming water waves force the boats to oscillate up and down, making one complete cycle every 15 seconds. When Boat A is at its peak, Boat B is at its low point and there is one crest between the two boats. The vertical distance between Boat A and Boat B at their extreme is 14 meters.
(A) Determine the wavelength of the wave in m to the nearest 0.1 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