29.) Humans can generally hear sounds with frequencies ranging from 20.0 to 20,000 Hz. This means that a. humans have no difficulty hearing sounds in this range b. humans have difficulty hearing high pitched sounds above 20,000 Hz c. humans have difficulty hearing low pitched sounds below 20.0 Hz d. all of these statements about human hearing are true

Q: On a hot summer day, a pesky little mosquito produced its warning sound near your ear. The sound is…

A: Given : Rate of beating=600 beats per second              v=350m/s   1) (a) The frequency of a sound…

Q: Which of the following statements are correct? Which one or more? a. The perceived…

A: The perceived loudness of a sound is a subjective measure of how loud a sound seems to a listener,…

Q: 2. Loudness is a physiological sensation sensed by the brain. Loudness varies nearly as the…

A: a) Busy street traffic = 70 dB     Close whisper = 20 dB=70-20=50 dBb) Factors on which loudness of…

Q: What frequency does a stationary observer hear when a sound source oscillating at 515 Hz and moving…

A: Given data: Velocity of sound (v) = 340 m/s Velocity of source (u) = 10 m/s Observer is stationary…

Q: 30. A car approaches you from behind as you run along a sidewalk. The car is moving towards you at…

A:

Q: 19) What is the intensity level in decibels of a sound with intensity 10-3 W/m2? The threshold of…

A: Intensity of sound (I) = 10-3 Wm2Threshold of human hearing (Io) = 10-12 Wm2

Q: 1. Some of the sound waves that emanate from students and bombard the auditory senses of their…

A: The velocity of wave is given by  wave velocity = frequency x wavelength

Q: Humans have a range of hearing of approximately 20 Hz to 20 kHz. Mice have auditory systems similar…

A:

Q: 6. Air temperature in the Sahara Desert can reach 56.0°C (about 134°F). What is the speed of sound…

A:

Q: 6. A trailer truck traveling east at 32.0 m/s sounds a 1100 Hz horn. What is the wavelength of the…

A: Speed of truck (vs) = 32 m/s        towards eastFrequency of horn(fo) = 1100 HzThe speed of sound…

Q: 20) What is the intensity of a 70-dB sound? The threshold of human hearing is 1.0 × 10-12 W/m2. A)…

A:

Q: 2. The sound intensity is 3X10°w/m² at a distance of 10m away from the source. How much power is…

A: The intensity at a point is defined as the power per unit area . I=P/A So P= IA

Q: 81. A physics professor demonstrates the Doppler effect by tying INT a 600 Hz sound generator to a…

A: In this question we have to find the highest and lowest frequencies heard by the student. Please…

Q: 4. A bat is using echolocation to find insects at night. If the bat emits a high frequency chirp and…

A:

Q: 11. If 1 bug makes a sound of 8 dB then what will 25 bugs sound like?

A: 11) Given, Sound intensity level of 1 bug is 8dB.

Q: Assuming that you have normal hearing, why would your voice appear louder when your plug both ears?

A: The correct answer is option B i.e. The amplification of competing environmental sound by the middle…

Q: 5. What is the intensity level in decibels for a sound that has an intensity of 5×105 W/m²? A. 79 dB…

A: Sound intensity level (I0 in dB) is reference intensity corresponding at 0 dB: I0 = 1 × 10-12 W/m2…

Q: What is the frequency, in hertz, of a sound wave (v = 340 m/s) with a wavelength of 68 m?

A:

Q: 3. The speed of sound in salt water is approximately 1500 m/s. Humpback whales can vocalize sounds…

A: Given  Speed of sound in salt water ,  v = 1500 m/s  Ferquency range is varying from 30 Hz to 8000…

Q: The frequency of the highest note on a certain musical instrument is 2000 Hz. a. How many harmonics…

A: From the question, the value of the fundamental frequency is: Thus, the frequency of the succeeding…

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A: Given: Two speakers can be set side-by-side. Hence there are some places that is present infront of…

Q: Which statement is true about voice? A. Voice uses a wider range of pitch and volume as compared to…

A: Voice is the sound produced by a human or animal.

Q: 14. The sound level of a normal conversation is about 60 dB. A rock concert is about 10 500 times…

A: Given:-  The Sound level of a normal conversation is about β1= 60 dB. A rock concert is about 10500…

Q: A sound source emits an audible frequency of 512 Hz. Which would cause a greater Doppler shift in…

A:

Q: The audible range for humans is ________. Choose one answer.   a. 20-20,000 Hz     b. less than 300…

A: Required:   Frequency range of audible sound for humans

Q: 6. The frequency of a tornado siren is 600 Hz. If a cyclist is moving toward the siren at 12 m/s in…

A: Ans:

Q: A sound has an intensity of 0.0000024 Watts per square meter. What is this sound's decibel level?

A:

Q: A very loud train whistle has an acoustic power output of 100 W. If the sound energy spreads out…

A: Given that:P=100 Wd=100 m

Q: This standing wave has a frequency of f = 169 Hz. What is this string's fundamental frequency? A) 72…

A: In this case, it has been given that the frequency of the second harmonic , which is .

Q: The human ear canal is approximately 2.5 cm long. It is open to the outside and is closed at the…

A:

Q: 1.Comparing the speed of sound in liquids, gases, and solids, the speed of sound is usually lowest…

A: Comparing the speed of sound in liquids, gases, and solids, the speed of sound is usually lowest in…