The city council is discussing whether or not to put fluoride in the city's water supply. many other towns add it already, but your town wants to research the topic before they make a decision. which would be the best group for them to ask for information on the topic? a. citizens from the town who are interested in the topic b. the company that supplies the fluoride c. the government agency responsible for monitoring water safety d. citizens from another town that currently add fluoride to their water

What’s #16 asking and how do i solve it?

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.

Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?