Athin beam of laser light of wavelength 514 nm passes through a diffraction grating having 3952 lines/cm. the resulting pattern is viewed on a distant curved screen that can show all bright fringes up to and including ±90.0° from the central spot. if the experiment were performed with all of the apparatus under water (which has an index of refraction of 1.33), what would be the total number of bright spots that would show up on the screen

Alexander calder's mobiles are an example of motion because it uses forces of wind and water.

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

Astep up transformer has 250 turns on its primary and 500 turns on it secondary. when the primary is connected to a 200 v and the secondary is connected to a floodlight that draws 5a, what is the power output? show all of your work.