A block of ice is sliding down a ramp with a constant acceleration of 4.9 m/s^2. What is the angle between the slope of the ramp and the horizontal? Assume the force of friction is not significant. A. 45 Degrees
B. 60 Degrees
C. 30 Degrees
D. 20 Degrees

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

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