A position vector in the first quadrant has an x-component of 18 m and a magnitude of 30 m. What is the value of its y-component?

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

What is the relationship between the direction of motion of the balloon and the wind currents

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