2) A loud horn is making 80 dB of sound. a. What is the intensity of...
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 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 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?
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
A sound wave with intensity 2 × 10-3 W / m^2 is considered as moderately loud to our ears. The drum inside our ear has a diameter of 6 mm. Show that the energy transferred to the drum of our ear if you hear the above sound wave for 60 seconds is E = 3.4 × 10-6 J. Consider the drum as a round surface.
Prof. Bohn Worksheet 12.1 At a busy street corner, the sound level is 75 dB. What is the intensity of sound there? 1. 2. A trumpeter plays with a sound level of 72 dB. Three equally loud trumpeters join in. What is the new sound level?
Sound Intensity & dB: You are watching the space shuttle rise after it launches. The sound level of the shuttle is 170 dB at a distance of 10.0m from the engine flames. Your seat in the bleachers is 10.00 km away. 25. What is the sound level at your ear (in dB)? Note: Pay attention to the units required for the answer. DIRECT SOUNDS Jettake-off, un shot Jack hann er Threshold of pain Rock concert Dance dub Voice shouting Factory...
Using a frequency-measuring lab device, I am to map out the sound intensity level distribution (dB) in a room (both with & without music playing) to create a 5x5 grid of 25 data points. Using the following data table of sound intensity level β(dB) and corresponding intensity I(W/m2), I also need to find the intensity to the nearest order of magnitude for the points on my sound intensity level maps. Here is the data table: Intensity levelβ(dB) Intensity I(W/m2) Example/effect...
3. A sinusoidal sound wave arrives at an ear, at time zero, the pressure on the eardrum is a maximum and the nearest pressure minimum is 0.45 meters away. The difference in pressure between the two locations is 0.60 Pa. a) What is the frequency of this sound? b) Find the intensity of the sound. c) How much energy does the sound wave deliver to the eardrum in one minute if the eardrum's area is 70 square millimeters?