You are on a plane traveling on a 23hr flight to Fort Wayne from West-Nowhere. The attendant forgets to close the dividing curtains, and five minutes after takeoff a two month old baby in 1st class starts to scream at 3500.0 Hz with a sound level of 122 dB at a distance of 10.0 cm from the baby's mouth. Your seat in "last class" is 7.0 m (approx. 21 feet away). What is the sound intensity at your ear (in W/m^2)? Assume the baby is an isotropic source (same at all angles) when radiating sound. -
You are on a plane traveling on a 23hr flight to Fort Wayne from West-Nowhere. The attendant forgets to close the dividing curtains, and five minutes after takeoff a two month old baby in 1st class starts to scream at 3500.0 Hz with a sound level of 122 dB at a distance of 10.0 cm from the baby's mouth. Your seat in "last class" is 7.0 m (approx. 21 feet away). What is the sound intensity at your ear (in W/m^2)? Assume the baby is an isotropic source (same at all angles) when radiating sound. -
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Transcribed Image Text:You are on a plane traveling on a 23hr flight to
Fort Wayne from West-Nowhere. The attendant
forgets to close the dividing curtains, and five
minutes after takeoff a two month old baby in
1st class starts to scream at 3500.0 Hz with a
sound level of 122 dB at a distance of 10.0 cm
from the baby's mouth. Your seat in "last class" is
7.0 m (approx. 21 feet away). What is the sound
intensity at your ear (in W/m^2)? Assume the
baby is an isotropic source (same at all angles)
when radiating sound.
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