નાયિકાને ચંદ્ર સૂરજ થયેલો કેમ લાગે છે
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The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At 20 °C, the speed of sound in air is about 343 metres per second, or a kilometre in 2.9 s or a mile in 4.7 s. Wikipedia
Particle velocity: v, SVL
Sound pressure: p, SPL,LPA
Audio frequency: AF
Acoustic impedance: Z
Transmission loss: TL
Characteristic: Symbols
Particle displacement: δ
Explanation:
which language is this?...xd
sorry i can,t understand it...
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