Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to the threshold of human hearing) for a period of 9.00 hours. An eardrum has an area of 3.42 x 10-4 m2. How much sound energy is incident on the eardrum during this time?
Hearing damage may occur when a person is exposed to a sound intensity level of 90.0...
Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to the threshold of human hearing) for a period of 9.00 hours. An eardrum has an area of 3.73 x 10-4 m2. How much sound energy is incident on the eardrum during this time? Number Units
An 9 hour exposure to a sound intensity level of 90.0 dB may cause hearing damage. What energy in joules falls on a 0.800 cm diameter eardrum so exposed?
An 8 hour exposure to a sound intensity level of 90.0 dB may cause hearing damage. What energy in joules falls on a 0.500 cm diameter eardrum so exposed? ________J
An 9 hour exposure to a sound intensity level of 95.0 dB may cause hearing damage. What energy in joules falls on a 0.700 cm diameter eardrum so exposed?
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 30.7 dB. The hearing aid picks up sound having a frequency of 250 Hz at an intensity of 2.70 x 101 W/m2. What is the intensity delivered to the eardrum? W/m2
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 24.2 dB. The hearing aid picks up sound having a frequency of 250 Hz at an intensity of 3.50 ✕ 10−11 W/m2. What is the intensity delivered to the eardrum?
Using an intensity of 1 × 10-12 W/m2 as a reference, the threshold of hearing for an average young person is 0 dB. Person 1 and person 2, who are not average, have thresholds of hearing that are β1 = -11.0 dB and β2 = +9.00 dB. What is the ratio I1/I2 of the sound intensity I1 when person 1 hears the sound at his own threshold of hearing compared to the sound intensity I2 when person 2 hears the...
2) A loud horn is making 80 dB of sound. a. What is the intensity of the sound? b. If a human eardrum has an area of 5.0x105m, how much energy gets transmitted to one ear after 5 seconds of hearing the horn? c. If a second horn with the same intensity is added, what will be the new sound level?
A person standing a certain distance from ten identical loudspeakers is hearing a sound level intensity of 123 dB. What sound level intensity would this person hear if four are turned off?
A 60 year old person has a threshold of hearing of 81.0 dB for a sound with frequency f=10,000 Hz. By what factor must the intensity of a sound wave of that frequency, audible to a typical young adult, (sound level=43.0 dB) be increased so that it is heard by the older person.