Final answer:
The frequency of a hard disk spinning at 1000 rpm is 16.67 Hz, and the period is 0.06 seconds, or 60 milliseconds.
Step-by-step explanation:
To determine the frequency of a hard disk spinning at 1000 rpm (revolutions per minute), we use the fact that frequency is the number of cycles per second (Hz). Since there are 60 seconds in a minute, we can calculate the frequency by dividing the number of revolutions by 60.
Frequency (f) = 1000 rev/min ÷ 60 = 16.67 Hz
Next, the period (T) is the inverse of frequency, which represents the duration of time for one complete cycle.
Period (T) = 1 ÷ frequency = 1 ÷ 16.67 Hz = 0.06 seconds (or 60 milliseconds)