8. A racing car emits a frequency of 1200 Hz and travels at a speed of 280 km/h on a hot day, when the thermometer reads 310°K, a car leaving the pits enters the race with an a speed of 140 km/h. Calculate: a) The frequency heard by the driver, who enters the race when the car approaches him. b) The frequency when the other car passes it and moves away from it.
8. A racing car emits a frequency of 1200 Hz and travels at a speed of 280 km/h on a hot day, when the thermometer reads 310°K, a car leaving the pits enters the race with an a speed of 140 km/h. Calculate: a) The frequency heard by the driver, who enters the race when the car approaches him. b) The frequency when the other car passes it and moves away from it.
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8. A racing car emits a frequency of 1200 Hz and travels at a speed of 280 km/h on a
hot day, when the thermometer reads 310°K, a car leaving the pits enters the race with
an a speed of 140 km/h. Calculate:
a) The frequency heard by the driver, who enters the race when the car approaches him.
b) The frequency when the other car passes it and moves away from it.
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