Choose the BEST answer to the following: Compared with a sound of 60 decibels, a sound of 80 decibels has an intensity (a) 10 times greater. (b) 100 times greater. (c) 1000 times greater. (d) more than 1000 time greater.

Q: A bullet can travel at a speed of over 1000 m/s. When a bullet is fired from a rifle, the actual…

A: Here bullet can travel at a speed of over 1000 m/s, then it will create a shock wave, because the…

Q: Why do I sometimes hear resonant tones that are higher in frequency than the fundamental frequency?

A: The doppler effect is the phenomenon in which the relative frequency of sound varies from the…

Q: Choose the BEST answer to the following: The loudness of a sound is most closely related to its (a)…

A: When we play a song, we hear low sound and high sound from a same instrument and same voice but we…

Q: The sound of 40 decibels is Select one: O a. 10 times as intense as the sound of 20 decibels. O b.…

A: In this question we have to answer about the sound level. Please give positive feedback if the…

Q: Two sounds of very nearly the  same frequency are sounded  together. The combined  sound rises and…

A: The beat frequency refers to the rate at which the volume is heard to be oscillating from high to…

Q: what exist as either longitudinal or transverse waves

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Q: What is meant by sound ranging? Give one use of sound ranging?

A: Sound ranging is a method for determining the distance between a point and the position of a sound…

Q: Distinguish between sound intensity and loudness?

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Q: The range of human hearing extends from approximately 20 Hz to 20,000 Hz. Find the wavelengths of…

A: The temperature of the air, TC=35°C   The speed of the sound in air 0°C, v0=331 m/s

Q: Which is a more objective measurement- sound intensity and loudness? Defend your answer.

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Q: How many times greater is the intensity of sound from a concert speaker at a distance of 1 meter…

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Q: vacuum cleaner makes 60 decibel sound, whisper is 20 decibel, how much louder the vacuum cleaner is?…

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Q: Sound waves are all of the following EXCEPT O it requires a medium O high and low O soft or loud O…

A: Only high frequency

Q: The siren of a fire engine is heard in situations A, B, and C. Rank the pitch heard, from greatest…

A: Given:  Velocity of source is  a. toward the listener at 30 km/h  = 8.33 m/s b. toward the listener…

Q: What are the closest frequencies to 500 Hz that an average person can clearly distinguish as being…

A: Given:  Frequency, f = 500 Hz

Q: What ultimately becomes of the energy of sound in the air?

A: Sound waves are mechanical waves and  generate heat as they travel and end up as heat when they are…

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

A: Given that, Air temperature is T = 18.88 oC Speed of sound in seawater is vs = 1542 m/s

Q: Why is there a Doppler effect when the source of sound is stationary and the listener is in motion?…

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Q: Which of the following properties of sound is the most similar to the brightness of light?…

A: Brightness of the light is defined as the amount of light per solid angle. Measured in luminance the…

Q: Choose the BEST answer to the following: The sound waves that most humans cannot hear are (a)…

A: Infrasonic sound consists of sound having frequencies below 20Hz and ultrasonic sound reflects sound…

Q: How many nodes, not including the endpoints, are there in a standing wave that is two wavelengths…

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Q: Choose the BEST answer to the following: The period of a 10-Hz wave is (a) 1/10 s. (b) 1.0 s. (c) 10…

A: The relationship between period and frequency is

Q: If you increase the frequency of a sound wave,

A: Given data: The velocity of a sound wave is: V The frequency of a sound wave is: f The wavelength of…

Q: Which characteristic of sound makes it possible to recognise a person by his voice without seeing…

A: The characteristic of sound which makes it possible to recognise a person by his voice without…

Q: Choose the BEST answer to the following: Sound travels in air by a series of (a) compressions. (b)…

A: Sound wave is a pressure wave which is produced when there is a vibration of the molecules of the…

Q: When a car drives away from you while honking its horn, the horn sounds as if it has compared to the…

A: Pitch of sound wave is directly proportional to its frequency. When a honking car going away from us…

Q: A stone is dropped from rest into a well. The sound of the splash is heard exactly 1.10 s later.…

A: The formula for speed of sound in air is given by v=331 ms1+TC273°C=331 ms1+11°C273°C=337.6ms The…

Q: How many times greater is the intensity of sound from a concert speaker at a distance of 10 meters…

A: we know that  intensity of sound is inversely  proportional to the square of distance I  α  1/ r2…

Q: You scream at a wall located 100 m away from you. After 0.6 seconds, you hear your echo. If your…

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Q: Choose the BEST answer to the following:In the proportion E ~  f, the f  stands for the(a) frequency…

A: Answer: ci,e frequency of a tuning fork or vibrating string.

Q: The pitch of a sound wave corresponds to what for a general wave?

A: The sensation of a frequency is commonly referred to as the pitch of a sound or a general wave.

Q: A popular party trick is to inhale helium and speak in a high-frequency, funny voice. Explain this…

A: When helium is inhaled

Q: What is the relationship between frequency and wavelength of the sound with the motion of the source…

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Q: Verify the values given in the textbook for the wavelengths (in air) of the lowest and highest…

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Q: In which of the following instruments is sound produced by striking O flute O violin trumpet O…

A: As we there are many musical instruments,in which sound is produced by striking. Some of the…

Q: If one sound is 6 times as intense as another, it has a sound level about ____dB higher.?

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Q: The average person has a hearing range of Select Choice to 16,000 Hz. Select Choice 200 Hz 20 Hz

A: Answer: 200 Hz

Q: If the speed of sound is 349 m/s, what is the temperature on that day?

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Q: Choose the BEST answer to the following: During the time an aircraft produces a sonic boom, the…

A: A shock wave is the waves produced when the disturbance of the medium becomes faster than the speed…

Q: What kinds of wind conditions would make sound more easily heard at long distances? Less easily…

A: The direction of wind flow makes the sound heard difference at long distances.

Q: Sound is able to travel only through liquids and gases. O True O False

A: Sound: It is a vibration which propagates as an acoustic wave through medium.

Q: What will happen when two sound waves of slightly different frequencies occur at the same time? How…

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Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.