could be used to identify the printer -- and, potentially, the person who used it. Sounds like something from a spy movie, right? Unfortunately, the scenario isn't fictional. Most color laser printers and color copiers are designed to print invisible tracking codes across every single printed page of their output. These codes reveal which machine produced a document and, in some cases, when the document was printed or copied. " EFForg, and Instructables. "Yellow Dots of Mystery: Is Your Printer Spying on You?" Instructables, Instructables, 29 Aug. 2022, https://www.instructables.com/Yellow-Dots-of- Mystery-Is-Your-Printer-Spying-on-/. Describe your reaction to this information -- did you know about these invisible tracking codes? Do you think printer manufacturers have an obligation to inform customers about this? Why or why not?

If you sat close enough to an old TV, you could see individual (R)ed, (G)reen and (B)lue (or RGB) “phosphors” that could represent just about any color you could imagine (using “additive color model”). When these three-color components are at their maximum values, the resulting color is white from a distance (which is amazing – look at your screen with a magnifying glass!). When all are off, the color results in black. If red and green are fully on, you’d get a shade of yellow; red and blue on would result in purple, and so on. For computers, each color component is usually represented by one byte (8 bits), and there are 256 different values (0-255) for each. To find the “inverse” of a color (like double-clicking your iFone® button), you subtract the RGB values from 255. The “luminance” (or brightness) of the color = (0.2126*R + 0.7152*G + 0.0722*B). For this program, you need to design (pseudocode) and implement (source code) a Color class that has R, G and B attributes (which can be…

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The video below shows a series of fireworks explosions, but was recorded in slow motion at 240 frames per second. You can see the audio sound track pictured at the bottom of the video. Use make measurements from the video to determine the speed of sound. a. describe how you determined the distance from the explosion to the camera.   b.Here is some data from a nearby weather station on the night of the fireworks. The video was recorded at about 10:30 PM.  Does this cause you to revise your calculations above?