An emergency vehicle siren is designed to emit an 8000 hz, Ask an Expert

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An Emergency Vehicle Siren is designed to emit an 8000 Hz sound. You hear a 9143 Hz tone as it approaches you at 40.0m/s and a 7273 Hz tone as it recedes at 32 m/s.

What is the temperature of the air? (Assume sound speed is 331 + 0.60T) m/s where T is in degrees celsius.

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