John is listening to a horn. He knows the frequency of the horn is 300 Hz when b

Question

John is listening to a horn. He knows the frequency of the horn is 300 Hz when both he and the horn are at rest. If he hears a pitch of 270 Hz, there are clearly several possibilities. For each of the following statements, indicate whether it is correct or incorrect. Both can be moving, in opposite directions. John and the horn are both moving in the same direction but John is ahead and moving faster than the horn. The distance between John and the horn is decreasing with time. Both can be moving and have different speeds. John is moving away from the horn at rest. Both can be moving and have the same speed.

Explanation / Answer

Correct
Correct
Incorrect - distance should increase as moving away
Correct
Correct -
Correct - both moving away

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