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A plane flies toward a stationary siren at 1/4 the speed of sound. Then the plane stands still on the ground and the siren is driven toward it at 1/4 the speed of sound. Show that a person sitting in the
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A plane flies toward a stationary siren at 1/4 the speed of sound. Then the plane stands still on the ground and the siren is driven toward it at 1/4 the speed of sound. Show that a person sitting in the plane will hear the same frequency of sound from the siren.

User Selmaril
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Answer:

See the attachments below.

Step-by-step explanation:

A plane flies toward a stationary siren at 1/4 the speed of sound. Then the plane-example-1
A plane flies toward a stationary siren at 1/4 the speed of sound. Then the plane-example-2
User Pranay Soni
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