A boy throws a steel ball straight up. Disregarding any effect air resistance the forces acting on the ball until it return to the group is.

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

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

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.