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...

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2. Someone shouting corresponds to about 88 dB. The area of the opening of the ear...

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Fundamentals of Physics

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