1. An experimenter wishes to generate in air a sound wave that has a displacement amplitude...
An experimenter wishes to generate in air a sound wave that has a displacement amplitude of 6.00 10-6 m. The pressure amplitude is to be limited to 0.870 Pa. What is the minimum wavelength the sound wave can have? (Take the equilibrium density of air to be ρ = 1.20 kg/m3 and assume the speed of sound in air is v = 343 m/s.) m
A sound wave in air has a pressure amplitude equal to 4.04 ✕ 10-3 Pa. Calculate the displacement amplitude of the wave at a frequency of 9.4 kHz. (Note: Use the following values, as needed. The equilibrium density of air is ρ = 1.20 kg/m3; the speed of sound in air is v = 343 m/s. Pressure variations ΔP are measured relative to atmospheric pressure, 1.013 105 Pa.)
A sound wave has an intensity level of 123.5 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 is the pressure amplitude of the wave? in N/m2
4. Consider a sound wave in the air that has displacement amplitude 0.0200 mm. Calculate the pressure amplitude for frequencies of (a) 150 Hz; (b) 1500 Hz; (c) 15 000 Hz . In air at normal atmospheric pressure and density, the speed of sound is 344 m/s and the bulk modulus is 1.42×10^5 Pa. Please show all work
2. Dr. Sutherland wishes to generate in air a sound wave that has a displacement amplitude of 5.50 x 10-6 m. The pressure amplitude is to be limited to 0.840 Ps. What is the minimum wavelength the sound wave can have?
A 85.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at 20.0°C is 1.20 kg/m3. Speed of sound in air at 20.0°C is 343 m/s. What is the displacement amplitude of a 85.0-Hz sound wave?
A 72.0-Hz sound wave is barely audible at a sound intensity level of 60.0 dB. The density of air at 20.0°C is 1.20 kg/m3. Speed of sound in air at 20.0°C is 343 m/s. What is the displacement amplitude of a 72.0-Hz sound wave? Answer in nm
Suppose you hear a clap of thunder 13.4 s after seeing the associated lightning strike. The speed of light in air is 3.00 ✕ 108 m/s. (a) How far are you from the lightning strike? (The speed of sound waves in air is 343 m/s.) km (b) Do you need to know the value of the speed of light to answer? Yes No
Consider a sound wave in air that has displacement amplitude 1.90×10−2 mm . Calculate the pressure amplitude for frequencies of 144 Hz . Calculate the pressure amplitude for frequencies of 1440 Hz . Calculate the pressure amplitude for frequencies of 1.44×104 Hz . Take the bulk modulus of the air to be 1.42×105Pa and the speed of sound to be 344 m/s.
A sound wave traveling in 20°C air has a pressure amplitude of 0.448 Pa. What is the intensity of the wave? (Assume the density of air is 1.29 kg/m3. Enter your answer in W/m2.) ________W/m2