Problem 2: One day when the speed of sound in air is 343 m/s, a fire truck traveling at v; = 29 m/s has a siren which produces a frequency of f= 405 Hz. Randomized Variables Vs = 29 m/s f= 405 Hz Part (a) What frequency (in Hertz) does the driver of the truck hear? fa= sin) cos() tan() 8 9 HOME cotan() asin() acos() E 5 atan() acotan() sinh() 2 cosh) cotanh() ODegrees O Radians tanh() END vol BACKSPACE DEL CLEAR Submit I give up! Hint Feedback Part (b) What frequency (in Hertz) does an observer hear when the truck is moving away?
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- Police car with siren travelling v = 28m/s with siren frequency = 436 hz. Speed of sound is 343m/s. What is the freq in hz that an observer hears as car moves away?A tuning fork with a frequency of 256 Hz is sounded together with a note played on a piano. Nine beats are heard in 3.00s. What are the possible frequency or frequencies?oy of 1,024 IA-3 Sound with a loudness of 100DB has an intensity of 1x102W/m?. (Note: It's 1x102 not 1x1012). Find the pressure and displacement amplitudes for this intensity of sound at a frequency of 512HZ. IA-4 Dickson has produced a loud sound P (10°N/m?) in air at sea leve! The aranh of gir
- A speaker puts out a constant sound with a power of P = 15 milliwatts and frequency fs = 256 Hz. Find: the frequency (fo) you’d hear if the speaker approached you at vs = 28 m/s (take the speed of sound to be v = 343 m/s) the frequency (fo) you’d hear if you approached the speaker at vs = 28 m/s (take the speed of sound to be v = 343 m/s) the frequency (fo) you’d hear if it moved away from you at vs = 28 m/s (take the speed of sound to be v = 343 m/s) the frequency (fo) you’d hear if you moved away from it at vs = 28 m/s (take the speed of sound to be v = 343 m/s)Hello, based on page 1 can you do ONLY question number 5 (on page 2)Answer the following step by step: A)The range of frequencies audible to humans is from about 20 Hz to 20kHz. Assuming that the speed of sound in air is 343 m/s, the wavelength of a 20 kHz sound is: a) 58 cm b) 1.8 cm c) 6860 km d) 400 km B) A 640 Hz tuning fork is placed on the open edge of a resonance tube of initial length L = 0 cm. Assume that the speed of sound is 330 m/s. As the tube becomes longer, successive whistles of maximum intensity (for example, from L1 to L3, or from L3 to L5, etc.) are heard at intervals L. What is the value L. Note: Be careful with the units a) 51.7 cm b) 194 cm c) 19.4 km d) 25.8 km e) 12.9 cm C) In a tube that has one end closed (the other open), with a fundamental frequency of 256 Hz, which of the following frequencies cannot produce resonance? a) 5.12 kHz b)There is no restriction to any frequency c) 19.7 kHz d) 768 Hz e) 1.28 kHz
- The tube has one end closed and is filled with water so that the air column inside has a length of 39.9 cm. A speaker with a constant frequency sound is on top of the tube and generates the second resonance (n = 3). Using the ECF you calculated in the previous question determine the wavelength (λ) of the speaker sound.Problem 1: A speaker emits 40 W of 1000 Hz while at rest. a) If you receive 100 dB from the speaker, how far away from it are you? Answer: 17.8 m b) If you hear the speaker frequency to be 1100 Hz, what is the relative velocity between you and the speaker, and are you moving toward or away from it? Answer:|v| = 34.3– т SAn audio engineer takes decibel readings at distances of r1 = 15 m and r2 = 22 m from a concert stage speaker during a sound check. When he is r1 from the speaker, the engineer registers a decibel level of β1 = 103 dB on his loudness meter.Randomized Variablesr1 = 15 mr2 = 22 mβ1 = 103 dB Part (a) What is the intensity of the sound, I1, in watts per square meter, that is measured by the loudness meter when the engineer is a distance of r1 from the speaker?Numeric : A numeric value is expected and not an expression.I1 = __________________________________________
- Problem 22: Two frequency generators are creating sounds of frequencies 460 and 462 Hz simultaneously. Randomized Variables f1 = 460 Hz f2 = 462 Hz What average frequency will you hear in Hz? fave = sin() cos() tan() 7 8 9 HOME cotan() atan() cosh() ODegrees O Radians asin() acos() E 4 5 6 acotan() sinh() 1 3 tanh() cotanh() END - VO BACKSPACE CLEAR DEL Submit Hint Feedback I give up! What will the beat frequency be in Hz?(13%) Problem 8: An audio engineer takes decibel readings at distances of r1 =15 m and r2 = 24 m from a concert stage speaker during a sound check. When he is r1 from the speaker, the engineer registers a decibel level of AB1 = 118 dB on his loudness meter. Randomized Variables "1 = 15 m 2 = 24 m 31 = 118 dB Elder, Lauren - Laurenmarieelder@gmail.com @theexpertta.com - tracking id: 5N67-9D-3B-44-99C3-13365. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. 33% Part (a) What is the intensity of the sound, I1, in watts per square meter, that is measured by the loudness meter when the engineer is a distance of r From the speaker? I1 = 0.63 v Correct! 33% Part (b) How much power P, in watts, is coming from the speaker during the sound check at distance ri? P = 1800 V Correct! 33% Part (c) Assuming that the speaker output does not change between the…What`s frequency of 4th harmonic YAG:Nd3+ laser beam if it`s wavelength is 266.0 nm. Introduce answer in THz.