To measure the unknown force, the resonant vibration period of the balance.
2.
Slightly softer rubber mountings were introduced to reduce a vibration period at 1, 500 to 1, 900 rpm.
3.
Though the particular type of nucleophilic substitution employed by ?-glucuronidase is unclear, evidence for the mechanisms of their homologues in the glycosidase family suggests that these reactions are qualitatively bond vibration period ).
4.
It was discovered that the machine used by Lockheed ( and authorized by the Department of Commerce ) to measure the natural vibration periods of the component parts of the aircraft had given Lockheed engineers misleading results.
5.
The mass usually has opposing pairs of radial'arms'sticking out horizontally, threaded with small weights that can be screwed in or out to adjust the moment of inertia to'tune'the torsional vibration period.
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