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Sound is more clearly heard with the win...

Sound is more clearly heard with the wind How?

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If the wind blows from the source to the listener, the velocity of the wind is added to that of the sound. The upper layer of air possesses a greater velocity of sound than that in the lower layers. The result is that the wavefront turn downwards and the sound rays curl down. A listener (O) on the ground thus has a better chance of hearing
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CENGAGE PHYSICS ENGLISH-SOUND WAVES AND DOPPLER EFFECT-Exercise 6.1
  1. What experimental evidence can be cited to show that the speed of soun...

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  2. Explain why the speed of sound through a gas cannot be greater than th...

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  3. Sound is more clearly heard with the wind How?

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  4. Explain: if an observer places his ear to one end of a long iron pipe ...

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  5. Does the velocity of sound in a solid increase significantly on heatin...

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  6. A man stands on the ground at a fixed distance from a siren which emit...

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  7. Two sound waves from two different sources interfere at a point to yie...

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  8. A sound differs by 6 dB from a sound of intensity equal to 10(nW)/(cm^...

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  9. Find the molecular weight for a gas in which the velocity of sound is ...

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  10. Seven grams of nitrogen is mixed with 12 g of oxygen in a tube and the...

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  11. Calculate the increae velocity of sound for 1^@C rise of temperature i...

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  12. If the sound level in a room is increased from 50 dB to 60 dB, by what...

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  13. Do displacement particle velocity and pressure variation in a longitud...

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  14. Why is sound wave of intensity 10^-12(W)/(m^2) and frequency 1000 Hz t...

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  15. What experimental evidence can be cited to show that the speed of soun...

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  16. Explain why the speed of sound through a gas cannot be greater than th...

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  17. Sound is more cleary heard with the wind How?

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  18. Explain: if an obeserver places hisear to one end of a long iron pipe ...

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  19. Does the velocity of sound in a solid increase significantly on heatin...

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  20. A man stands on the ground at a fixed distance from a siren which emit...

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