Concept explainers
(a)
Theaverage latency time of the floppy disk.
(a)
Answer to Problem 46E
The average latency time of the floppy diskis
Explanation of Solution
Write the equation for the average latency time.
Here,
Write the equation for the rotational period.
Here,
Put the above equation in equation (I).
Conclusion:
Frequency is the number of rotations per second. It is given that the floppy disk rotates at
Find the frequency of rotation of the floppy disk.
Substitute
Therefore, the average latency time of the floppy disk is
(b)
The average seek time of the floppy disk.
(b)
Answer to Problem 46E
Theaverage seek time of the floppy diskis
Explanation of Solution
Write the equation for the access time.
Here,
Rewrite theabove equation for
Conclusion:
Substitute
Therefore, the average seek time of the floppy disk is
(c)
The average latency and seek times of the floppy disk.
(c)
Answer to Problem 46E
The average latency time of the disk is
Explanation of Solution
Equation (II) can be used to determine average latency time and equation (III) can be used to determine average seek time.
Conclusion:
It is given that the floppy disk rotates at
Find the frequency of rotation of the floppy disk.
Substitute
Substitute
Therefore, the average latency time of the disk is
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Chapter 20 Solutions
General Physics, 2nd Edition
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