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27 Nov 2019
I'm just not sure where to start with this one:
A person is standing alone in the woods. A second person isapproaching them while emitting a frequency of 256 Hz. Using asound-level-meter the first person notices the decibles increase by3dB in 2 seconds. How fast is the approaching person going and atwhat distance are they from the first person when the first personnoticed the 3dB increase? The speed of sound in the air is 325.24m/s.
I'm just not sure where to start with this one:
A person is standing alone in the woods. A second person isapproaching them while emitting a frequency of 256 Hz. Using asound-level-meter the first person notices the decibles increase by3dB in 2 seconds. How fast is the approaching person going and atwhat distance are they from the first person when the first personnoticed the 3dB increase? The speed of sound in the air is 325.24m/s.
