This laser-cooled atomic fountain clock from the national institute of standards and technology (nist) in boulder, colorado. is one of the world‘s most accurate clocks. if it ran for 60 million years it would not be off by more than onesecond. extremely accurate timing information is critical for such things as cell phone networks and global positioningsystems. shown here are nist scientists dawn meckhoff and steve jefferts who led the team that built this cloclcthe clock shown here can be adjusted for time intervals shorter than one thousand trillionths of a second. what is thedecimal for each of the time intervals in exercise 1? a. 1 thousandth of a secondb. 1 millionth of a second