An individual motor disconnect must be in sight of the motor controller and must disconnect the controller. nec definition of in sight means that the current controller must be visible and not more than from the disconnect.
a) 50 ft
b) 75 ft
c) 25 ft
d) none of the above

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.