2. Someone shouting corresponds to about 88 dB. The area of the opening of the ear...
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2. Someone shouting corresponds to about 88 dB. The area of the opening of the ear is about 1.5 cm. The acoustic impedance of air is 413 kg m- s-1 a. The units of intensity are Watts per square meter (or W/m). Watts are units of power and square meters are an area. This means that I = Power/Area. Given this information, what is the power of the shout? b. What is the pressure amplitude (P) of the sound wave? c. What is the sound pressure level (Lp)? 2. Someone shouting corresponds to about 88 dB. The area of the opening of the ear is about 1.5 cm. The acoustic impedance of air is 413 kg m- s-1 a. The units of intensity are Watts per square meter (or W/m). Watts are units of power and square meters are an area. This means that I = Power/Area. Given this information, what is the power of the shout? b. What is the pressure amplitude (P) of the sound wave? c. What is the sound pressure level (Lp)?
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a To find the power of the shout we can use the formula for sound intensity I in decibels dB and con... View the full answer
Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Posted Date:
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