A nearby dog barks, and the intensity of that sound arriving at your ear is 230722...
A nearby dog barks, and the intensity of that sound arriving at your ear is 230722 W/m2. There also a kitten purring, and you hear it as a 683 W/m2 sound. How many decibels louder is the dog's bark than the kitten's purr?
Homework Answers
Concept: here we use the relation between sound level and intensity of the sound as follows:
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A nearby dog barks, and the intensity of that sound arriving at
your ear is 230722...
Assume that you are at a concert in which the "Sound Intensity Level" in your ear canal is known ...
Assume that you are at a concert in which the "Sound Intensity Level" in your ear canal is known to be 110 What is the intensity of the sound in your ear canal in W/m2? What is the intensi of sound in the tissue of your eardrum in Wm2? Assume that the impedance of the air in the ear canal is Z 413 kg/(m's) and that the impedance of the eardrum is that of water, Z20 1.48e6 kg/(m's)
Assume that...
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Help please!!!! By how many decibels do you reduce the sound intensity level due to a...
Help please!!!! By how many decibels do you reduce the sound intensity level due to a source of sound if you double your distance from it? Assume that the waves expand spherically.
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Express your answer as an integer Review Constants l Periodic Table View Available Hint(s) Learning Goal To learn the properties of logarithms and how to manipulate them when solving sound problems. The intensity of sound is the power of the sound waves divided by the area on which they are incident Intensity is measured in watts per square meter, or W/m log(1,000,000)- The human ear can detect a remarkable range of sound intensities. The quietest sound that we can hear...
Sound Level Workset Name Sdverstone PH105 Spring 2018 Show all math stops and write wnis wi...
Sound Level Workset Name Sdverstone PH105 Spring 2018 Show all math stops and write wnis wi The sound level in decibels is given by Sound Level Exercise ?-10 where / is the intensity in W/mi and A 10 w I. If a sound level is 0 dB, does this mean tut there is no sound? Explain. 2. Does negative dB have meaning? Explain 3. The intensity of a sound from a motorcycle is twice that of a certain car in...
Assume that you are at a concert in which the "Sound Intensity Level" in your ear canal is known to be 110 What is the intensity of the sound in your ear canal in W/m2? What is the intensi of sound in the tissue of your eardrum in Wm2? Assume that the impedance of the air in the ear canal is Z 413 kg/(m's) and that the impedance of the eardrum is that of water, Z20 1.48e6 kg/(m's)
Assume that...
A typical adult ear has a surface area of 2.16 x 103 m2. The sound intensity during a normal conversation is about 3.91 x 10-6 W/m2 at the listener's ear. Assume that the sound strikes the surface of the ear perpendicularly. How much power is intercepted by the ear? Centre cerca 09 2,40 the sound intensity during a normal conversation is about 3.91 * 10€ wym® at the listene's ea. Assume that the sound strikes the surface of the ear...
9. Sound levels are measured by the logarithmic decibel scale, named after Alexander Graham Bell. The sound level, L, corresponding to an intensity of I, in watts per square metre, is し= 10 log-, where lo is the minimum intensity audible to the human ear. If amplified rock music has a loudness of 120 dB and ordinary conversation has a loudness of 50 dB, how many times louder than ordinary conversation is amplified rock music?
9. Sound levels are measured...
Express your answer as an integer Review Constants l Periodic Table View Available Hint(s) Learning Goal To learn the properties of logarithms and how to manipulate them when solving sound problems. The intensity of sound is the power of the sound waves divided by the area on which they are incident Intensity is measured in watts per square meter, or W/m log(1,000,000)- The human ear can detect a remarkable range of sound intensities. The quietest sound that we can hear...
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