Electromagnetic waves vary in
a. the speed they travel in a vacuum.
b. wavelength and frequency.
c. the way they reflect.
d. the orientation of their electric and magnetic fields.

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.