Two sound waves (call them X and Y) travel through the air. Wave X has a...

Two sound waves (call them X and Y) travel through the air. Wave X has a wavelength of 0.1 m and a pressure amplitude of 0.04 Pa. Wave Y has a frequency of 3430 Hz and a pressure amplitude of 4 Pa.

Fill in the following:

The intensity of Y is greater than that of X by ............... times.

Soundwave Y is ................. dB louder than soundwave X.

Expert Solution

Well,
the speed of the sound in air is 343 m/s
by using the wave equation, v = f * lambda
f = v/ lambda
fx = 343 / 0.1 = 3430 Hz
y = 343 / 3430 = 0.1

So intensities are,
X = 0.04/(0.1/3430) = 1372Pa/m^2
Y = 4/(0.1/3430) = 137200Pa/m^2

Therefore,

The intensity of Y is greater than that of X by 100 times.

Loudness is the characteristic of a sound that is primarily a psychological correlate of physical strength (amplitude). More formally, it is defined as "that attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud".
Loudness, a subjective measure, is often confused with objective measures of sound strength such as sound pressure, sound pressure level (in decibels), sound intensity or sound power. Filters such as A-weighting attempt to adjust sound measurements to correspond to loudness as perceived by the typical human. However, loudness perception is a much more complex process than A-weighting. Loudness is also affected by parameters other than sound pressure, including frequency, bandwidth and duration.

genius_generous answered 2 hours ago

If the form of a sound wave traveling through air is s(x, t) = (6.0 nm)...

If the form of a sound wave traveling through air is s(x, t) = (6.0 nm) cos(kx + (3021 rad/s)t + φ), how much time does any given air molecule along the path take to move between displacements s = +2.3 nm and s = -2.3 nm?

List the ear structures that sound waves and resulting vibrations pass through as they travel from...

List the ear structures that sound waves and resulting vibrations pass through as they travel from the outside of the ear to the organ of Corti.

A tuning fork generates sound waves with a frequency of 230 Hz. The waves travel in...

A tuning fork generates sound waves with a frequency of 230 Hz. The waves travel in opposite directions along a hallway, are reflected by walls, and return. The hallway is46.0 m long and the tuning fork is located 14.0 m from one end. What is the phase difference between the reflected waves when they meet at the tuning fork? The speed of sound in air is 343 m/s. (Ans in degrees)

For this problem, assume that high frequency sound waves travel through human tissue at 1500 m/s...

For this problem, assume that high frequency sound waves travel through human tissue at 1500 m/s (about the speed of sound in water). a) Measurements of the blood flow in the ascending aorta shows a maximum speed of 92.00 cm/sec. Assuming the ultrasound frequency used is 2.000000 MHz (the paper uses 2.25 MHz), calculate the frequency as seen by the blood that is traveling toward the ultrasound transducer at 92.00 cm/s. The transducer, which both transmits and receives the sound...

Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers...

Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 19 cm apart. The sound intensity decreases as the distance between the speakers is increased, reaching zero at a separation of 29 cm. What is the wavelength of the sound? Express your answer using two significant figures. If the distance between the speakers continues to increase, at what separation will the sound intensity again be a maximum? Express your answer using two significant...

The wave function of a standing wave is y(x,t)=4.44mm sin[(32.5rad/m)x]sin[(754rad/s)t] For the two traveling waves that...

The wave function of a standing wave is y(x,t)=4.44mm sin[(32.5rad/m)x]sin[(754rad/s)t] For the two traveling waves that make up this standing wave A) Find the wave function B) Find what harmonic it is C) find wave speed

Explain how sound is actually a form of energy. In what medium do sound waves travel?...

Explain how sound is actually a form of energy. In what medium do sound waves travel? 1-2 paragraphs

Two in-phase loudspeakers are located at (x,y)coordinates (?3.0m,+2.0m) and (?3.0m,?2.0m). They emit identical sound waves with...

Two in-phase loudspeakers are located at (x,y)coordinates (?3.0m,+2.0m) and (?3.0m,?2.0m). They emit identical sound waves with a 2.0 m wavelength and amplitude a. Determine the amplitude of the sound at the five positions on the y-axis (x=0) a)with y=0.5m b)with y=1.0m c)with y=1.5m d)with y=2.0m

Waves travel at different velocity in different medium. How does wave velocity effect wave frequency?

A sound wave in air at 20 Celsius has a frequency of 151 Hz and a displacement amplitude of...

A sound wave in air at 20 Celsius has a frequency of 151 Hz and a displacement amplitude of 5.40×10-3 mm.Part AFor this sound wave calculate the pressure amplitude (in Pa).Use 1.42×105 Pa for the adiabatic bulk modulus.Pmax= 2.11 PaPart BFind the intensity of the waveUse 1.20 kg/m^3 for the density of air.I=?

Question