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His vocal cords vibrate 1 time every 5.29 seconds. 10 0: 1 hertz (Hz) 1 to 1.66 Hz: Approximate frequency of an adult human's resting heart beat: 1 Hz: 60 bpm, common tempo in music 2 Hz: 120 bpm, common tempo in music ~7.83 Hz: Fundamental frequency of the Schumann resonances: 10 1: 10 hertz 10 Hz
3.6 ks: The length of one hour (h), the time for the minute hand of a clock to cycle once around the face, approximately 1/24 of one mean solar day 7.2 ks (2 h): The typical length of feature films 35.73 ks: the rotational period of planet Jupiter, fastest planet to rotate 38.0196 ks: rotational period of Saturn, second shortest rotational period
The hertz is defined as one per second for periodic events. The International Committee for Weights and Measures defined the second as "the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom" [3] [4] and then adds: "It follows that the hyperfine splitting in the ground state of the ...
3 to 5 minutes 1.5 to 3.5 minutes FL280 (28,000 ft; 8,550 m) 2.5 to 3 minutes 1.25 to 1.5 minutes FL300 (30,000 ft; 9,150 m) 1 to 2 minutes 30 to 60 seconds FL350 (35,000 ft; 10,650 m) 30 to 60 seconds 15 to 30 seconds FL400 (40,000 ft; 12,200 m) 15 to 20 seconds 7 to 10 seconds FL430 (43,000 ft; 13,100 m) 9 to 12 seconds 5 to 6 seconds
The day is divided into 10 16 (16 10) hexadecimal hours, each hour into 100 16 (256 10) hexadecimal minutes, and each minute into 10 16 (16 10) hexadecimal seconds. History [ edit ]
However, when it is inconvenient to use base-60 for minutes and seconds, positions are frequently expressed as decimal fractional degrees to an equal amount of precision. Degrees given to three decimal places ( 1 / 1000 of a degree) have about 1 / 4 the precision of degrees-minutes-seconds ( 1 / 3600 of a degree) and ...
Although the length of a moment in modern seconds was therefore not fixed, on average, a medieval moment corresponded to 90 seconds. A solar day can be divided into 24 hours of either equal or unequal lengths, [ 2 ] [ 3 ] the former being called natural or equinoctial, and the latter artificial.
The test subject repeatedly steps onto and off of a platform every two seconds. [2] The height of the platform is 20 inches or 51 centimetres for men and 16 inches or 41 centimetres for women. The rate of 30 steps per minute must be sustained for five minutes or until exhaustion. To ensure the right speed, a metronome is used.