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1.Why does the speed of sound depend on the temperature in the room? Why does it travel faster if the temperatureis hotter?

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1. As it approaches a hiker standing on the highway, a car traveling at 100 km/h blows its horn. Determine the frequency of the sound waves reaching the hiker if the car's horn has a frequency of 440 Hz and the temperature of the air is at 0'C (a) as the car approaches and (b) after it has passed the hiker. ca00 1 L. Whet uill bo ito fro quenou if
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