84 To study the Doppler shift on your own, you take an electronic tone generating device that is set to a frequency of mid- dle C (262 Hz) to a campus wishing well known as "The Abyss." When you hold the device at arm's length (1.0 m), you measure its intensity level to be 80.0 dB. You then drop the tuner down the hole, listening to its sound as it falls. (a) After the tuner has fallen for 5.50 s, what frequency do you hear? (b) Estimate the time at which you can no longer hear the tuner.
84 To study the Doppler shift on your own, you take an electronic tone generating device that is set to a frequency of mid- dle C (262 Hz) to a campus wishing well known as "The Abyss." When you hold the device at arm's length (1.0 m), you measure its intensity level to be 80.0 dB. You then drop the tuner down the hole, listening to its sound as it falls. (a) After the tuner has fallen for 5.50 s, what frequency do you hear? (b) Estimate the time at which you can no longer hear the tuner.
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Please help me with this one. Part A has an answer of 229 Hz and part B has an answer of 9s.
Transcribed Image Text:To study the Doppler shift on your own, you take an
84
electronic tone generating device that is set to a frequency of mid-
dle C (262 Hz) to a campus wishing well known as "The Abyss."
When
you
hold the device at arm's length (1.0 m), you measure its
intensity level to be 80.0 dB. You then drop the tuner down the hole,
listening to its sound as it falls. (a) After the tuner has fallen for 5.50
s, what frequency do you hear? (b) Estimate the time at which you
can no longer hear the tuner.
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