Show and explain all of your work. How long does it take to read a disk with 6000 cylinders, each containing three tracks of 256 sectors? First, all the sectors of track 0 are to be read starting at any sector, then all the sectors of track 1 starting at any sector, and so on. The rotation rate is 4800 revolutions per minute, and a seek takes 3 msec between adjacent cylinders and 18 msec for the worst case. Switching between tracks of a cylinder can be done in 2 msec.