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Mohamud Nooh Mohamud Nooh
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Posts: 10
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2 years ago
Tuning forks are used to diagnose a nervous system disorder that has reduced sensitivity to vibrations as a symptom. The medical tuning fork in (Figure 1) has a frequency of 139 Hz
H
z
 .
What is its period of oscillation?
Express your answer to three significant figures and include the appropriate units.
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Answer rejected by topic starter
wrote...
Educator
2 years ago
Take 1 / 139 = 7.1942 * 10-3.

To three significant figures: 7.19 * 10-3 seconds or 0.00719 seconds
Mohamud N. Author
wrote...
2 years ago
Not three significant figures
wrote...
Educator
2 years ago
To find the period of oscillation, you reciprocate the frequency, that is:

1 divided by the frequency

Therefore, I took 1 / 139 = 0.00719 seconds -- this is three significant figures
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