Two snowcats in Antarctica are towing a housing unit to a new location, as
shown in Fig. 4-38.
The sum of the forces
Fa and Fg exerted
on the unit by the
L
horizontal cables is
parallel to the line L,
and
32°
Fa = 4500 N.
Determine FB and
the magnitude of
FA + FB.
480

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

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.

Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity