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MMLU-Pro / 9171 / The driver of a police car hears an echo of the car’s siren from a wall toward…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

The driver of a police car hears an echo of the car’s siren from a wall toward which the car is moving with a speed of 3.5 m/s. If the speed of sound is 350 m/s and the frequency of the siren is 600 Hz, the driver hears the echo at a frequency nearest to which of the following?

category

physics

options

  1. 594 Hz
  2. 588 Hz
  3. 606 Hz
  4. 642 Hz
  5. 636 Hz
  6. 612 Hz
  7. 600 Hz
  8. 618 Hz
  9. 630 Hz
  10. 624 Hz

src

ori_mmlu-college_physics

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Official source

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