At a distance of 12.0 m from a point source, the intensity level is measured to be

Question:

At a distance of 12.0 m from a point source, the intensity level is measured to be 70 dB. At what distance from the source will the intensity level be 40 dB?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

College Physics

ISBN: 978-0321601834

7th edition

Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou

See More Books

Question Posted: Aug 29, 2015 05:09 AM

See More Questions

A spherical source radiates sound uniformly in all directions. At a distance of 10 m, the sound intensity level is 80 dB. (a) At what distance from the source is the intensity level 60 dB? (b) What...
Residents of Hawaii are warned of the approach of a tsunami by sirens mounted on the tops of towers. Suppose a siren produces a sound that has an intensity level of 120 dB at a distance of 2.0 m....
(a) If the power of a sound source doubles, the intensity level at a certain distance from the source (1) increases, (2) exactly doubles, or (3) decreases. Why? (b) What are the intensity levels at a...
Show how each transformation may be accomplished by using a nitrile as an intermediate. You may use any necessary reagents. (a) Hexan-1-ol heptan-1-amine (b) Cyclohexanecarboxamide cyclohexyl ethyl...
The following procedures are used by Complete Wholesale Incorporated. a. All sales are made on account, with each sale being indicated on a sequentially numbered sales invoice. b. Customer payments...
Mantinea Limited manufactures various kitchenware products. The following direct costs are incurred in producing a batch of 2,000 food processors. The factory overheads for the year are 3,000,000....
A manufacturer determines that a big screen HDTV set had probabilities of \(0.8,0.15,0.05\), respectively, of being placed in the categories acceptable, minor defect, or major defect. If 3 HDTVs are...
Leisure is an inferior good for Horace. a. Use indifference curves to show the income and substitution effects of an increase in Horaces wage rate. b. Could Horaces labor supply curve be...
Lagoon Plc's Directors are planning to instigate the removal of its auditors, KPNG due to their inability to deliver "quality audit works". However, the Audit Manager has insisted that this move by...
Lydia Hartley, manager of UltraProducts New Zealand Division, is trying to set the production schedule for the last quarter of the year. The New Zealand Division had planned to sell 100,000 units...
At a rock concert, the average sound intensity level for a person in a front-row seat is 110 dB for a single band. If all the bands scheduled to play produce sound of that same intensity, how many of...
At a Fourth of July celebration, a firecracker explodes (Fig. 14.20). Considering the firecracker to be a point source, what are the intensities heard by observers at points B, C, and D, relative to...
In a survey of her introductory statistics class, an instructor found the average number of Facebook friends the 49 respondents had was 539.2 and the standard deviation was 298. The data on number of...
The graph in Figure P22.66 shows the current through a \(1.0 \Omega\) resistor as a function of time. a. How much charge flowed \(I(\mathrm{~A})\) through the resistor during the \(10 \mathrm{~s}\)...
Figure Q23.8 shows two circuits. The two batteries are identical and the four resistors all have exactly the same resistance. a. Compare \(\Delta V_{\mathrm{ab}}, \Delta V_{\mathrm{cd}}\), and...
For the bulb in Figure P22.70, what is the approximate resistance of the bulb at a potential difference of \(6.0 \mathrm{~V}\) ? A. \(7.0 \Omega\) B. \(17 \Omega\) C. \(27 \Omega\) D. \(37 \Omega\)...
Consider the four circuits in Figure Q26.22. They all have the same resonance frequency \(f_{0}\) and are driven by the same emf. Rank in order, from largest to smallest, the maximum currents...
Figure Q23.7 shows two circuits. The two batteries are identical and the four resistors all have exactly the same resistance. a. Is \(\Delta V_{\mathrm{ab}}\) larger than, smaller than, or equal to...
An interior designer decides to accent a wall with an evenly spaced row of stenciled circles. The wall is 316 long and the stencil has an area of 36 square inches. If the designer wants to leave a...
Explain the buyers position in a typical negotiation for a business. Explain the sellers position. What tips would you offer a buyer about to begin negotiating the purchase of a business?
A neon discharge tube emits a bright reddish-orange spectrum, but a glass tube filled with neon is completely transparent. Why doesnt the neon in the tube absorb orange and red wavelengths?
An electron and a proton are each accelerated from rest through a potential difference of 100 V. Afterward, which particle has the larger de Broglie wavelength? Explain.
You need to design a photodetector that can respond to the entire range of visible light. What is the maximum possible work function of the cathode?
With regard to the production possibilities frontier (PPF), an efficient point is a point that is: ?
Within the context of rapidly evolving regulatory landscapes and heightened ethical scrutiny, how do advanced organizations navigate the ethical complexities of technological innovation and...
Write a program that accepts an integer limit and an integer value and that prints a complete line of output reporting the multiples of value uptil the limit . Keep prompting the user for a value...

At a distance of 12.0 m from a point source, the intensity level is measured to be

Question:

Step by Step Answer:

b 10 log F D b b 2 b 1 10 ...View the full answer

College Physics

Students also viewed these Oscillations Mechanical Waves questions