Randall is able to paddle his canoe at 2.0 m/s in still water. He drops the canoe into a river which is flowing north at 1.5 m/s . Draw sketches showing how to determine the direction of the magnitude and direction of the velocity of the canoe relative to the Earth using vector addition: no need for drawing

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

What’s #16 asking me and how do i solve it?

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