A bus is movind towards John at 1.5×10 to the power 8m/s.the bus flashes the headlighton John of frequency 4200hz.at what frequency will John receive three light?
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A bus is movind towards John at 1.5×10 to the power 8m/s.the bus flashes the headlighton John of frequency 4200hz.at what frequency will John receive three light?
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