- We have already stated that this velocity of rotation is 465 meters
**per second**at the equator. - Each note has a duration of about .46 of a second and a rate of 147 pulses
**per second**. - Where set up by spark discharges the spark frequency must be above twenty thousand
**per second**. - An average man speaks mostly between the fundamental frequencies of 85 and 160
**per second**. - The most acute perception of sound differences lies at about 3,000 vibrations
**per second**. - The duration of each note is about .08 of a second and has a rate of 123 to 129 pulses
**per second**. - A volt may be likened to the velocity in feet
**per second**of water in falling past a certain point. - This would mean that, in this fifth we would hear the beats a little slower than one
**per second**. - For another, a ship could travel very many times 186000 miles
**per second**in overdrive. - Moving with a velocity of 1,800 feet
**per second**, is resisted by a force equal to 156 lbs. - Sound is transmitted through the air at a velocity of 340 meters (1,115 feet)
**per second**. - For another, a ship could travel very many times 186,000 miles
**per second**in overdrive.

- Fall of earth to sun
**per second**. - It was going at about 900 feet
**per second**. - It only added a few more feet
**per second**to my flight. - C. from 331.36 metres
**per second**. - Light, 192,000 miles
**per second**. - Electricity, 288,000 miles
**per second**. - The mean 40 yards ditto is 875 feet
**per second**. - Sound 743 miles per hour or 1142 feet
**per second**. - Steamboat runs 20 miles per hour or 26 feet
**per second**. - The mean 20 yards ditto is 1,050 feet
**per second**. - A rifle ball 1000 miles per hour or 1466 feet
**per second**. - A horse runs 20 miles per hour or 29 feet
**per second**. - A horse trots 7 miles per hour or 10 feet
**per second**. - Rapid rivers flow 3 miles per hour or 4 feet
**per second**. - A hurricane moves 80 miles per hour or 117 feet
**per second**. - A man walks 3 miles per hour or 4 feet
**per second**. - A storm moves 36 miles per hour or 52 feet
**per second**. - The dominant frequency is 4300 cycles
**per second**(Pl. 11A). - Musical notes are comprised between 27 and 4000 vibrations
**per second**. - Vibrations
**per second**double with each octave, and so do beats. - The thirds and sixths beat from about 7 to nearly 12
**per second**. - On the other hand, computers can handle hundreds of calls
**per second**. - Sound waves in air travel at a rate of about 1,090 feet
**per second**. - Sound travels at the rate of three hundred and sixty-four yards
**per second**. - Thus 50~ would indicate a frequency of fifty cycles
**per second**. - A moderate wind blows 7 miles per hour or 10 feet
**per second**. - If the lower tone vibrates 1000
**per second**, the upper will vibrate 2000. - The earth goes 98,000 feet
**per second**, or one thousand miles a minute.