Explain X in use of our world today?

I see usage of X almost universal these days what are your views on the use of this letter and why?

X-box
X-games
X-men
X-Mas
X chevy logo
X saturn logo
X honda logo
X iorn chef
X jesus cross

X-ethical

  • World problem for physics? A 1255 kg Honda is going through a school zone at 5.0 x 101 km/h and then the driver quickly steps on the brakes to make the car come to a complete stop by skidding 3.0 x 101 m. What is the work done on the car by the frictional forces? (Hint: the answer is negative because the force and the displacement are in the opposite directions.)
  • Our 2006 honda odyssey lost acceleration/power and was towed? Was towed. On first start now, it starts for 1 second and immediately turns off. On second start, it only whines like a flooding sound. The engine light is on. The van is stranded. Please let me know where to start. What do these symptoms mean? What are the signs of a bad egr valve? It it air or fuel intake? Spark plugs are fairly new. Starter is fairly new. Our budget is very small.
  • I live in a home that was made in the 50's or 60's. We have an old style looking light pole in our front yard? However, someone ran straight over our light pole with a Honda. It's held up by a string right now but we want to either fix or replace the whole unit. I have attempted to Google this & find an answer but I have had no luck & need some direction as to what to do now.
  • After replacing our car battery, our remote starter just turns and turns without actually starting the car? My wife has a 2010 Honda Fit and we just had to replace the battery. We got a remote starter installed from Best Buy in either 2010 or 2011. But after the recent battery replacement, the remote starter responds by just cranking and not starting. It does like three sets of cranking before stopping. I don't remember the brand of remote starter, but anyone have any insight of what I need to do?