Assertion: speed | /r/HasProperty | modeled dry air
Facets:
value: at mean sea level
type: LOCATION
value: in the international standard atmosphere
type: LOCATION
Source sentences:
text: As modeled in the International Standard Atmosphere, dry air at mean sea level, standard temperature of 15 °C (59 °F), the speed of sound is 340.3 meters per second (1,116.5 ft/s).