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A stationary source emits sound with a frequency of 1250 Hz. If the speed of the...

A stationary source emits sound with a frequency of 1250 Hz. If the speed of the sound is 343 m/s, what frequency is heard by an observer approaching the source with a speed of 25 m/s?

Please show all equations and work in detail. Write clearly please. I always rate and will rate, ty :) <3 Have a great day

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