Engineering, 21.02.2020 23:30, ferguag15stu
You have a harddrive with 8GB of data stored on it, and the files are fragmented. The average size of a file is 16KB. To defragment the files, the OS copies a file to a clean area of the drive reserved for compacting the drive, then writes the file back to contiguous sectors in the main storage area so there are no fragments in the file. Average seek time and rotational delay for the drive are 5 and 4 milliseconds respectively, with a transfer rate of 4MB/sec.
How long does it take to write one file to the compression area and back to the main storage area of the disk?
Answers: 1
Engineering, 04.07.2019 18:10, michellerosas
Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.
Answers: 3
Engineering, 04.07.2019 18:10, genyjoannerubiera
Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)
Answers: 1
Engineering, 04.07.2019 19:10, shunna33
Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?
Answers: 2
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