3. Астронет > A Sonic Boom
... sonic booms before they are slowed below sound speed by the Earth's atmosphere ... Публикации с ключевыми словами: sonic boom - sound speed - скорость звука . ... Публикации со словами: sonic boom - sound speed - скорость звука . См. также: . ...
4. Phil Plait's Bad Astronomy: Mad Science
... use this equation for sound, substituting the speed of sound for the speed of light ... from the object, "v" is the velocity of the object, and "c" is the speed of sound ...
7. Airplane Flight
... when taking off and landing, swept back for flight near the speed of sound ... At the speed of sound, the air resistance (" drag ") increases steeply, because air ... those problems begin well before the speed of sound is reached, because part of the ...
8. Lesson 22b--Airplane Flight
... they fly at about 85% of the speed of sound ; once that is exceeded, air resistance ... Why do jetliners avoid flying above the speed of sound? ... Why do jetliners avoid flying faster than even 85% of the speed of sound? ...