A sound wave has an intensity level of 118.8 dB in air. The density of air at 20.0°C is ρ = 1.20 kg/m3 . The speed of sound in air at 20.0°C is v = 343 m/s .What maximum force does this wave exert on an eardrum of area 0.540 × 10−4 m2?

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