The sound intensity 5.0 m from point source is 0.50 W/m2.The power output of the source is:

A) 12.5 W B) 39 W C) 79 W D) 160 W E) 260 W A) 12.5 W B) 39 W C) 79 W D) 160 W E) 260 W

The bulk modulus of water is 2.2 x 109 Pa, and its density is 1.0 x 103 kg/m3.What is the speed of sound in water?

A) 1.5 x 103 m/s B) 2.2 x 103 m/s C) 3.5 x 103 m/s D) 4.5 x 103 m/s E) 2.2 x 106 m/s A) 1.5 x 103 m/s B) 2.2 x 103 m/s C) 3.5 x 103 m/s D) 4.5 x 103 m/s E) 2.2 x 106 m/s

The speed of sound in air is 340 m/s, and the density of air is 1.2 kg/m3.If the displacement amplitude of a 440-Hz sound wave is 10 µm, what is its pressure-variation amplitude?

A) 1.8 Pa B) 3.3 Pa C) 11 Pa D) 15 Pa E) 28 Pa A) 1.8 Pa B) 3.3 Pa C) 11 Pa D) 15 Pa E) 28 Pa

Exam 17: Waves II

Explore all topics

A source emits sound with a frequency of 1000 Hz.Both it and an observer are moving in the same direction with the same speed, 100 m/s.If the speed of sound is 340 m/s, the observer hears sound with a frequency of:

(Multiple Choice)

4.8/5

(71)

Question 41

The sound intensity 5.0 m from point source is 0.50 W/m².The power output of the source is:

(Multiple Choice)

4.8/5

(79)

Question 42

Beats in sound occur when:

(Multiple Choice)

4.9/5

(89)

Question 43

The bulk modulus of water is 2.2 x 10⁹ Pa, and its density is 1.0 x 10³ kg/m³.What is the speed of sound in water?

(Multiple Choice)

4.9/5

(74)

Question 44

The speed of sound in air is 340 m/s.The shortest air column, closed at one end, which will resonate to a 512 Hz tuning fork is approximately:

(Multiple Choice)

4.9/5

(77)

Question 45

When listening to tuning forks of frequency 256 Hz and 260 Hz, one hears the following number of beats per second:

(Multiple Choice)

4.8/5

(69)

Question 46

If the speed of sound is 340 m/s a plane flying at 400 m/s creates a conical shock wave with an apex half angle of:

(Multiple Choice)

4.9/5

(81)

Question 47

The longitudinal displacement of a mass element in a medium as a sound wave passes through it is given by s = s_m cos (kx - ωt).Consider a sound wave of frequency 440 Hz and wavelength 0.75m.If s_m = 12 µm, how long does it take an element of air to move from a displacement of 12 µm to a displacement of 0 µm?

(Multiple Choice)

4.8/5

(81)

Question 48

The speed of sound in air is 340 m/s, and the density of air is 1.2 kg/m³.If the displacement amplitude of a 440-Hz sound wave is 10 µm, what is its pressure-variation amplitude?

(Multiple Choice)

4.9/5

(76)

Question 49

Five organ pipes are described below.Which one has the highest fundamental frequency?

(Multiple Choice)

4.8/5

(73)

Question 50

The rise in pitch of an approaching siren is an apparent increase in its:

(Multiple Choice)

4.9/5

(83)

Question 51

The Doppler shift formula for the frequency detected is where f ' is the frequency emitted, v is the speed of sound, v_D is the speed of the detector, and v_s is the speed of the source.Suppose the source is traveling at 5 m/s away from the detector, the detector is traveling at 7 m/s toward the source, and there is a 3 m/s wind blowing from the source toward the detector.The values that should be substituted into the Doppler shift equation are:

(Multiple Choice)

4.8/5

(77)

Question 52

To produce beats it is necessary to use two waves:

(Multiple Choice)

4.7/5

(84)

Question 53

The largest number of beats per second will be heard from which pair of tuning forks?

(Multiple Choice)

4.8/5

(71)

Question 54

In order for two sound waves to produce audible beats, it is essential that the two waves have:

(Multiple Choice)

4.8/5

(72)

Question 55

A source emits sound with a frequency of 1000 Hz.It is moving at 20 m/s toward a stationary reflecting wall.If the speed of sound is 340 m/s an observer at rest directly behind the source hears a beat frequency of:

(Multiple Choice)

4.9/5

(66)

Question 56

A plane produces a sonic boom only when:

(Multiple Choice)

4.9/5

(81)

Question 57

The longitudinal displacement of a mass element in a medium as a sound wave passes through it is given by s = s_m cos (kx - ωt).Consider a sound wave of frequency 440 Hz and wavelength 0.75m.If s_m = 12 µm, what is the displacement of an element of air located at x = 1.2 m at time t = 0.11 s?

(Multiple Choice)

4.8/5

(76)

Question 58

Two stationary tuning forks (350 and 352 Hz)are struck simultaneously.The resulting sound is observed to:

(Multiple Choice)

4.9/5

(82)

Question 59

An organ pipe with both ends open is 0.85 m long.Assuming that the speed of sound is 340 m/s, the frequency of the third harmonic of this pipe is:

(Multiple Choice)

4.8/5

(73)

Question 60

Showing 41 - 60 of 70

Exam 17: Waves II

A source emits sound with a frequency of 1000 Hz.Both it and an observer are moving in the same direction with the same speed, 100 m/s.If the speed of sound is 340 m/s, the observer hears sound with a frequency of:

The sound intensity 5.0 m from point source is 0.50 W/m2.The power output of the source is:

Beats in sound occur when:

The bulk modulus of water is 2.2 x 109 Pa, and its density is 1.0 x 103 kg/m3.What is the speed of sound in water?

The speed of sound in air is 340 m/s.The shortest air column, closed at one end, which will resonate to a 512 Hz tuning fork is approximately:

When listening to tuning forks of frequency 256 Hz and 260 Hz, one hears the following number of beats per second:

If the speed of sound is 340 m/s a plane flying at 400 m/s creates a conical shock wave with an apex half angle of:

The speed of sound in air is 340 m/s, and the density of air is 1.2 kg/m3.If the displacement amplitude of a 440-Hz sound wave is 10 µm, what is its pressure-variation amplitude?

Five organ pipes are described below.Which one has the highest fundamental frequency?

The rise in pitch of an approaching siren is an apparent increase in its:

To produce beats it is necessary to use two waves:

The largest number of beats per second will be heard from which pair of tuning forks?

In order for two sound waves to produce audible beats, it is essential that the two waves have:

A source emits sound with a frequency of 1000 Hz.It is moving at 20 m/s toward a stationary reflecting wall.If the speed of sound is 340 m/s an observer at rest directly behind the source hears a beat frequency of:

A plane produces a sonic boom only when:

The longitudinal displacement of a mass element in a medium as a sound wave passes through it is given by s = sm cos (kx - ωt).Consider a sound wave of frequency 440 Hz and wavelength 0.75m.If sm = 12 µm, what is the displacement of an element of air located at x = 1.2 m at time t = 0.11 s?

Two stationary tuning forks (350 and 352 Hz)are struck simultaneously.The resulting sound is observed to:

An organ pipe with both ends open is 0.85 m long.Assuming that the speed of sound is 340 m/s, the frequency of the third harmonic of this pipe is:

Measurement

Motion Along a Straight Line

Vector

Motion in Two and Three Dimensions

Force and Motion I

Force and Motion II

Kinetic Energy and Work

Potential Energy and Conservation of Energy

Center of Mass and Linear Momentum

Rotation

Rolling, Torque, and Angular Momentum

Equilibrium and Elasticity

Gravitation

Fluids

Oscillations

Waves I

Temperature, Heat, and the First Law of Thermodynamics

The Kinetic Theory of Gases

Entropy and the Second Law of Thermodynamics

Electric Charge

Electric Fields

Gauss Law

Electric Potential

Capacitance

Current and Resistance

Circuits

Magnetic Fields

Magnetic Fields Due to Currents

Induction and Inductance

Electromagnetic Oscillations and Alternating Current

Maxwells Equations; Magnetism of Matter

Electromagnetic Waves

Images

Interference

Diffraction

Relativity

Photons and Matter Waves

More About Matter Waves

All About Atoms

Conduction of Electricity in Solids

Nuclear Physics

Energy From the Nucleus

Quarks, Leptons, and the Big Bang

Filters

The sound intensity 5.0 m from point source is 0.50 W/m².The power output of the source is:

The bulk modulus of water is 2.2 x 10⁹ Pa, and its density is 1.0 x 10³ kg/m³.What is the speed of sound in water?

The speed of sound in air is 340 m/s, and the density of air is 1.2 kg/m³.If the displacement amplitude of a 440-Hz sound wave is 10 µm, what is its pressure-variation amplitude?

The longitudinal displacement of a mass element in a medium as a sound wave passes through it is given by s = s_m cos (kx - ωt).Consider a sound wave of frequency 440 Hz and wavelength 0.75m.If s_m = 12 µm, what is the displacement of an element of air located at x = 1.2 m at time t = 0.11 s?