What is happening to the sound when the source of the sound is approaching us? The source emits lower and lower frequency sound waves The source emits higher and higher frequency sound waves The velocity of the movement causes more sound waves to be received per time period. More waves means higher frequency. The velocity of the movement causes fewer sound waves to be received per time period. Less waves means higher frequency.

Q: Some whales make a collection of repeating sounds with frequencies ranging from 20 Hz to 10 kHz.…

A: The frequency range given is 20 Hz to 10 kHz.  The speed of sound waves is given as  v = 1400 m/s.…

Q: The velocity of sound in air is approximately 330 m/s. a) Given that, what is the frequency of a…

A: a )  Given :- V= 330 m/s λ = 16.5 m V = f * λ 330 = f * 16.5 f = 330/16.5 f= 20 Hz frequency of…

Q: A train sounds a horn that vibrates at a frequency of 400Hz, as heard by the engineer aboard the…

A: Recall Apparent frequency=f then  f=V±VDV±VsWhere V=speed of sound           VD=speed of detector…

Q: the human ear tends to be most sensitive to sound frequencies of 3 khz. the sound intensity at this…

A: Given:-           Sound frequencies =3 kHz.          Intensity of sound  = 3 x 10-13 w/m2.…

Q: An ambulance has a siren emits a sound which is sinusoidal with frequency fs = 350Hz. Assuming the…

A: Given data: Frequency of the sound wave emitted by the siren, fs=350 Hz Speed of sound in air,…

Q: Bats can detect small objects such as insects that are of a size approximately that of one…

A:

Q: The speed of sound in steel is 5000 m/s. What is the wavelength of a sound wave of frequency 660 Hz…

A: Given : speed of wave in steel , V = 5000m/s frequency of the wave in steel , f = 660Hz The…

Q: Dolphins make sounds in air and water. What is the ratio of the wavelength of a sound in air to its…

A:

Q: For sound waves propagating in a specific medium, one of the following is true: O a. The intensity…

A: For sound wave propagating in a specific medium, the intensity is inversely proportional to the…

Q: An organ pipe is open at both ends. The frequency of the fourth mode is 316 Hz higher than the…

A: f4-f3=316 HzVelocity of sound= 340 m/s

Q: Which of the following statements are TRUE of sound waves? Identify all that apply. A sound wave is…

A: Given:  Some statements about the sound energy

Q: A sound has a high pitch and a low volume. What is probably true of this sound wave?

A: Pitch of a sound depends on the frequency of the sound. High pitch means shrill or high frequency…

Q: A sound wave from a siren has an intensity of 100.0 W/m2 at a certain point, and a second sound wave…

A: Consider the formula for intensity level due to a first siren,

Q: The first overtone of a sound wave in a pipe that is closed at one end has a frequency of 300 Hz.…

A: The equation for the frequency of the sound is given by,

Q: When a sound wave transitions to a medium with a faster speed of sound (e.g., from air to water),…

A: Sound travel in the form of longitudinal wave. When it travels from one medium to another its…

Q: A bat can detect small objects, such as an insect, whose size is approximately equal to one…

A: given data  f=60 kHz v=340 m/s

Q: Which of the following statements are TRUE of the frequency of sound and the perception of pitch?…

A: Consider the statement 1. The frequency of high pitch sound is high which corresponds to a low…

Q: What is the result of a wave reflecting off a fixed boundary?   The reflected wave has the same…

A: What is the result of a wave reflecting off a fixed boundary?

Q: An airplane traveling at half the speed of sound emits a sound of frequency 4.52 kHz. (a) At what…

A: Given data: Frequency of the sound, fs=4.52 kHz = 4.52×103 Hz Let the speed of sound be v,…

Q: The speed of sound in water is 1500 m/s. What is a wave length of a sound wave of frequency 250 Hz…

A:

Q: Sound waves travel at roughly 340 m/s at room temperature. The minimum hearing range of a human is…

A: Given: Speed of sound, v=340 m/s  Frequency, f=20 Hz