When you look out the window you can see constantly moving air. air is cycled in order to reach equilibrium. answer the following questions:

a. what are the two major characteristic that change when air is heated and cooled?
b. how does these characteristics change the movement of air?
c. what is the name of the cycle that develop during these changes?
d. why do the changes you describe in part b provide an example of a cycle?

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.