#2. You are walking down the street in a city where the sound of traffic is at 71.9 dB. Your friend is talking to you at 60.5 dB. What is the combined sound intensity level? Is the combined sound above the threshold of pain?
Q: A single dog barks at a sound intensity level of β = 88 dB. a. Another dog runs up beside the first…
A:
Q: If I'm tuning my A string (which is supposed to be 110 Hz) on a guitar and the tuner tells me I am…
A: The generated frequency is given by the formula, where a is the frequency of note and n is the…
Q: 3) A herd of 7 screeching elephants makes a sound of 117 dB. a) What is the intensity produced by…
A: Number of elephants screeching, The intensity of sound in decibels,
Q: threshold into
A: correct option is b
Q: 6.) Acoustics a.) By what factor is an 82.0 dB sound more intense than a 24.0 dB sound? What is the…
A: Sound level 1 SL1=82 dB=10 logI1I0Sound level 2 SL2=24 dB=10 logI2I0SL1-SL2=82dB-24dB=58…
Q: A window whose area is 1.5 m² open onto a street. Sound at an intensity level of 75 dB enters the…
A: Since you have asked multiple questions, here the first question is incomplete so we will solve the…
Q: One person shouting can produce a sound level of 85 dB from a distance of 10 m. Suppose there are…
A: Given: The sound level produce when a person shouts is 85 dB from a distance of 10 m. To determine:…
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: 13. Two identical machines are positioned the same distance from a worker. The intensity of sound…
A: 13. Given, The intensity of sound delivered by each machine at location of the worker is, I = 21μW…
Q: A person standing 1.25 m from a portable speaker hears its sound at an intensity of 4.70 x 10-³…
A:
Q: A teacher wants to demonstrate that the speed of sound is not a constant value. Considering her…
A: B.
Q: 6. The intensity levels of two people's speech are 63.0 dB and 64.5 dB, respectively. What is the…
A: The 'dB' unit is a logarithmic unit, therefore we can not simply directly add them. We need to use a…
Q: 2. A person standing a certain distance from an airplane with four equally noisy jet engines is…
A: Given:Number of jet engines initially running: Sound intensity level when all the engines are…
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: 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: 14. You are standing 20.0m from one sound source and 60.0m from another. Both are outputting the…
A: In this problem first draw a diagram of source. S1 is first source and S2 is second source.…
Q: What is the critical angle for total internal reflection for light entering a certain medium (n = 3)…
A: Light is entering a certain medium having a refractive index n1 = 3 from the air which has a…
Q: What is the sound intensity level at a distance of 1.0 km? Express your answer with the appropriate…
A:
Q: You work at a building site and the noise level has been measured at 95 dB. You need to wear…
A:
Q: arks at a sound intensity level of β = 95 dB. a. Another dog runs up beside the first dog and…
A:
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: 1. What is the speed of a sound wave in air at 300°K? What is the speed in helium at the same…
A: We know that,Cair Speed of sound in air=KRTKair=1.4R (Characteristic Gas Constant)=0.287…
Q: Would you expect the pitch produced by tapping a glass of water to increase or decrease as the water…
A: sound travel through the vibration of particles of the medium of the sound wave. the greater the…
Q: The sound intensity 3.6 m from an isotropically radiating point source is 0.86 W/m². What is the…
A: Power = Intensity × Area P = I × 4πr² P = 0.86 × 4π(3.6)² P = 140.059 W
Q: a) A sound wave moves through the air. Its frequency is 522.32 Hz. The air temperature is 11 °C.…
A: Given data Frequency f = 522.32 Hz Air temperature T = 11 deg C We have to calculate the…
Q: 4. A source emits sound uniformly in all directions. There are no reflections of the sound. At a…
A: Given Intensity of the sound = 5.0 × 10-3 W/m2 Distance of this intensity from source = 12 m We have…
Q: A sound has an intensity of 0.0000024 Watts per square meter. What is this sound's decibel level?
A:
Q: A boy has climbed to the top of a 6m tall tree. When he shouts, the sound waves have an intensity of…
A:
Q: Take an bottle with a narrow opening that had your favorite beverage in it, and when it is empty…
A: Sound is basically vibrations that propagate from one point to another. It requires a medium to…
Q: 2. You are in a car traveling at 25.0 m/s toward a pole-mounted warning siren. If the siren's…
A:
Q: Sound can either be pleasing or distracting. Musical instruments such as piano creates sound that is…
A: Noise-cancelling headphones were originally created for airplane pilots to improve their comfort on…
Q: How many times is the sound of the amplifiers louder than that of the lawn mower? Round your answer…
A: Given: Power of sound of amplifiers in decibel Pa=116 dB , Power of sound of lawn mower in decibel…
Q: 5. A bat is flying towards a tree while emitting a sound wave with frequency 100 kHz. The bat hears…
A:
Q: Two observers, A and B. If A is at R1 = 59 m away from a sound source and B is at R2 = 6 m away from…
A: Given: R1 = 59 m (for A) R2 = 6 m (for B) Sound propagates in concentric circles just like ripples…
Q: 56. Suppose that a public address system emits sound uniformly in alldirections and that there are…
A: Distance from the sound source, r=22 m Intensity of the sound at distance r=22 m is I=3.0×10-4W/m2…
Q: 1. The intensity sound level in air is 68dB. Calculate Pmax if the temperature is 20°C, the density…
A: Given:- The intensity level of the sound is β= 68dB The density of the air is ρ = 1.20 kg/m3 The…
Q: 9. A door bell generates a 58.0 dB sound at a close distance. What is the intensity of the sound…
A: The expression for the sound intensity is β=10 log10II0 ...................................... (1)…
Q: Two speakers are facing each other and producing a single pure tone. You are standing between the…
A:
Q: What is the intensity of a sound that has an intensity level of 95 dB? W/m? 60 ss
A: Given data: Intensity level (β) = 95 dB Required: Intensity of sound in W/m2
Q: 2. A spherical source radiates sound uniformly in all directions. At a distance of 11 m, the sound…
A: The distance from the source is 11 m.The intensity of the sound level is 94 dB.
Q: 4) A factory uses 12 metal stamping machines. When all machines are operating, they produce a sound…
A: To find the intensity of the sound produced by all 12 machines, we need to know the relationship…
Q: Good day, Maam/Sir. I hope you can help me to my study. Thank you!! Topic: Sound and Hearing…
A:
Q: A singing barber shop quartet all together makes a 6. sound level intensity of 85 dB when you are…
A: The power and Intensity of sound waves are related by :- I = P4πr2 where I is…
Trending now
This is a popular solution!
Step by step
Solved in 4 steps