Plz help i dont understand, i have an exam

State the right hand rule of the direction of magnetic field in a conductor carrying current

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!

On his honeymoon, james joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on mount blanc. what maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? the specific heat of water is 4186 j/kg ∙ k. a)0.064 c° b)0.053 c° c)0.071 c° d)0.047 c°