Which of the following statements about a metal wire in equilibrium are true? select all that apply. there cannot be excess charges on the surface of the wire. there may be excess charges in the interior of the wire. the electric field inside the wire may be nonzero but uniform. the net electric field everywhere inside the wire is zero. the interior of the metal wire is neutral. there may be a constant flow of mobile electrons inside the wire. there may be excess charges on the surface of the wire. there is no net flow of mobile electrons inside the wire. there are no excess charges in the interior of the wir

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

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Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.