The speed that light travels : a. speeds up when traveling through solids b. slows when traveling through vacuums c. changes when going through different mediums

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.