PRACTICE IT Use the worked example above to help you solve this problem. A certain piano string is supposed to vibrate at a frequency of 4.36 x 10² Hz. In order to check its frequency, a tuning fork known to vibrate at a frequency of 4.36 x 10² Hz is sounded at the same time the piano key is struck, and a beat frequency of 8 beats per second is heard. (a) Find the two possible frequencies at which the string could be vibrating. flower = fhigher = Hz Hz (b) Suppose the piano tuner runs toward the piano, holding the vibrating tuning fork while his assistant plays the note, which is at 428 Hz. At his maximum speed, the piano tuner notices the beat frequency drops from 8 Hz to 4 Hz (without going through a beat frequency of zero). How fast is he moving? Use a speed of sound of 343 m/s. m/s (c) While the piano tuner is running, what beat frequency is observed by the assistant? [Note:

PRACTICE IT Use the worked example above to help you solve this problem. A certain piano string is supposed to vibrate at a frequency of 4.36 x 10² Hz. In order to check its frequency, a tuning fork known to vibrate at a frequency of 4.36 x 10² Hz is sounded at the same time the piano key is struck, and a beat frequency of 8 beats per second is heard. (a) Find the two possible frequencies at which the string could be vibrating. flower = fhigher = Hz Hz (b) Suppose the piano tuner runs toward the piano, holding the vibrating tuning fork while his assistant plays the note, which is at 428 Hz. At his maximum speed, the piano tuner notices the beat frequency drops from 8 Hz to 4 Hz (without going through a beat frequency of zero). How fast is he moving? Use a speed of sound of 343 m/s. m/s (c) While the piano tuner is running, what beat frequency is observed by the assistant? [Note:

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Part A In a certain home sound system, two small speakers are located so that one is 40.0 cm closer to the listener than the other. For what frequencies of audible sound will these speakers produce destructive interference at the listener? (Find only the three lowest audible frequencies.) For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Interference fromn two loudspeakers. Express your answer(s) in hertz, If there is more than one value, separate your answers by commas. Hz Submit Bequest Answer Part B For what frequencies of audible sound will these speakers produce constructive interforence at the listener? (Find only the three lowest audiblo frequencies). Express your answer(e) in hertz, If there is more than one value, separate your answers by commas. Hz
Please explain each step
Answer fast please
Use the CB (Critical Band) concept and the chart below to predict whether the following pairs of tones, when heard simultaneously at the same amplitude, will evoke a consonant or a dissonant sensation. Explain how you know. (Consider the first member of each pair to be the centre frequency for this exercise.)
Calculate the amplitude A of a progressive wave with frequency f= 99 Hz and wavelength > =10 m if its displacement at the point x = 0.1 m at the time t= 10 s is 0.3 m. Provide your answer in SI units. Enter your answer in the box below. Answer: Choose...
SOLUTION (A) Find the first three harmonics at the given tension. Calculate the speed of the wave on the wire: Find the wire's fundamental frequency: Find the next two harmonics by multiplication: = V = f₁ Substitute the values of F, μ, and L. F 1/2 80 N (=) ¹/² = (2.00 x 10-³ kg/m = (B) Find the wavelength of the sound waves produced. Solve vs fλ for the wavelength and substitute the frequencies. F == A V f₁ 2L (C) Find the fundamental frequency corresponding to the elastic limit. Calculate the tension in the wire from the elastic limit: f₁ f₂ = 2f₁ = 2.00 × 10² Hz, ƒ3 = 3ƒ₁ = 3.00 × 10² Hz A₁ = v₁/f₁ = (345 m/s)/(1.00 x 10² Hz) = 3.45 m 1₂ = vs/f₂ = (345 m/s)/(2.00 x 10² Hz) = 1.73 m ^₂ = vs/f3 = (345 m/s)/(3.00 x 10² Hz) = 1.15 m = 2.00 × 10² m/s 2(1.00 m) elastic limit →→ F = (elastic limit) A F = (2.80 x 108 Pa) (2.56 × 10-7m²) = 71.7 N 1 V 2L F 1/2 -= 1.00 x 10² Hz μ = 2.00 x 10² m/s 1 2(1.00 m) 71.7 N 2.00 x 10-³ kg/m = 94.7 Hz
Two cars have the same single-frequency horn. When one is at rest and the other is moving toward it at 15 m/s, the dirver at rest hears a beat frequency of 4.5 Hz. What is the frequency of the horns? Please sketch the situation, define all variables. Thank you
Answer to part A: 101 Hz I need help with parts: B, C, D
PLEASE ANSWER PART D FOR ME THANKS IN ADVANCE
Please download the following worksheets, which show 4 separate grids. Each grid has two different waves (e.g., Wave and Wave B). Your goal is to draw the resulting wave (i.e., Wave C) if the two waves would have been superposed on top of each other. To do this, you'll need to add the two amplitudes (height of the Wave A and Wave B on the y-axis) at a given point on the x-axis to get the resulting one. For example, using number 3 as an example: a. At point 0 on the x axis, Wave A has an amplitude of 0, and Wave B has an amplitude of 0, so Wave C at point 0 would be 0. b. At point 4 on the x axis, Wave A has an amplitude of 6, and Wave B has an amplitude of 4, so Wave C at point 3 would have an amplitude of 10. c. At point 8 on the x axis. Wave A has an amplitdue of 0, and Wave B has an amplitude of -4, so Wave C at point 8 would be -4. You do not have to find the points for every single point along the x-axis, but just enough to get the general shape of the resulting wave. Once you…
Please help thank you! Required info: Two speakers vibrate in phase with each other at 523 Hz. At certain points in the room, the sound waves from the two speakers interfere destructively. One such point is 2.23 m from speaker #1 and is between 2.00 m and 4.00 m from speaker #2. The speed of sound in air is 343 m/s. a) how far is this point from speaker #2? b) Find the second possible distance between 2.00 m and 4.00 m from speaker #2. c) Find the third possible distance between 2.00 m and 4.00 m from speaker #2.