What tension should the 6.61 x 10-3 kg/m string have so that its fundamental frequency is 146.8 Hz? Express your answer to three significant figures and include approprlate units. HA ? Value Units Submit Request Answer
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A: The graph for the Intensity verses 1/(distance)2 is plotted using following steps.
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- A source emits sound waves isotropically. The intensity of the waves 1.80 m from the source is 2.30 x 10-4 W/m². Assuming that the energy of the waves is conserved, find the power of the source. Number i UnitsA 2.500 m chain is stretched to a tension of 210.0 N. A wave is sent along the chain at 290.0 m/s. Calculate the mass (in g) of the chain. Enter the numerical part of your answer to two decimal figures.3 rces The sound of normal breathing is not very loud, with an intensity of about 11 dB at a distance of 1 m away from the face of the breather. Note that in this problem sound intensity in decibels is denoted 3; intensity in W/m² is denoted I View Available Hint(s) distance Ddetect in meters. Ddetect = 3.16 m Submit Previous Answers ✓ Correct Part B In general, if a sound has intensity of 3 dB at 1 m from the source, at what distance de from the source would the decibel level decrease to 0 dB? Since the limit of hearing is 0 dB this would mean you could no longer hear it. Express the distance in terms of B. Be careful about your signs! View Available Hint(s) Submit IVE] ΑΣΦ do 3.55 3 Previous Answers X Incorrect; Try Again; 5 attempts remaining < Return to Assignment Provide Feedback P Pearson m Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
- Chapter 16: Problem 12: The captain of a crab boat on the coast of Alaska notes that in a time period of t = 12 minutes, the boat goes up and down n = 28 times. Randomized Variables t = 12 minutes n = 28 a) Input an expression for the frequency of the ocean wave, f. b) What is the frequency, in hertz? c) If the crests are d = 100.0 m apart how fast are the waves traveling in meters per second?1. The noise from a power mower was measured at 109 dB. The noise level at a rock concert was measured at 118 dB. Find the ratio of the intensity of the rock music to that of the power mower. (Round your answer to the nearest whole number.) 2. The decibel level of the sound of a subway train was measured at 98 dB. Find the intensity in watts per square meter (W/m2). (Give your answer in scientific notation, correct to one decimal place.) (blank) × 10(blank) W/m2The n vs. f graph below is for a newly discovered material. Please note that the metric prefix "T" represents "tera-". 1 THz = 10¹2 Hz. n vs. f GRAPH n In this material, which frequency has the greatest speed? In this material, which frequency has the lowest speed? 700 2.0 1.9 1.8 1.7 1.6 500 600 f(THz) 800