A construction worker is carrying a load of 40 kg over his head and is walking at a constant velocity if he travels a distance of 50 m how much work is being done

1. when light strikes a pane of glass, it what? 2. when light strikes a translucent pane of glass 3. when light strikes a blue opaque surface only blue light is 4. when light strikes a prism it ! will give brainpower answer if answered all correctly!