1 answer

When one viewer shouts in the Giants Stadium, the sound intensity level at the center of...

Question:

When one viewer shouts in the Giants Stadium, the sound intensity level at the center of the field is 60 dB. When all the vie
When one viewer shouts in the Giants Stadium, the sound intensity level at the center of the field is 60 dB. When all the viewers shout together, the intensity level increases to 110 dB. Considering that each person generates the same sound intensity at the center of the field, how many viewers are at the game?

Answers

Intensity level = 10 log(I/Io), where I is intesity and Io=10^-12 W/m2

Initially, let the intensity be i.Also, initial intensity level = 60 dB.

So, 60=10log(i/Io)............eqn 1

Let there be n viewers. So, final intensity = n*i. Also , final intensity level = 110 dB.

So, 110=10log(n*i/Io)

=>110 = 10 log n + 10 log(i/Io)

=>110=10log n + 60 (using eqn 1)

=>10 log n = 50

=>log n =5

=>n=10^5 = 100000

So, required number of viewers= 100000

.

Similar Solved Questions

1 answer
(Make a drawing showing the current, magnetic field, and the force for each case) A straight...
(Make a drawing showing the current, magnetic field, and the force for each case) A straight wire carrying a 3 A current has a 20 cm section of its length immersed in a 0.50 Tesla uniform magnetic field. How should the wire be oriented such that the magnetic force it experiences is maximal? Explain ...
1 answer
PROBLEM-4 Consider a thick insulating spherical shell of uniform volume charge density with total charge Q=8uC,...
PROBLEM-4 Consider a thick insulating spherical shell of uniform volume charge density with total charge Q=8uC, inner radius a=40mm, and outer radius b=80mm. a) Find the magnitude of electric field for r=8mm. (1pt) E=40 N/C Upload your answer. Choose File No file chosen b) Find the magnitude of elec...
1 answer
An air conditioning contractor has kept detailed records on the lifetimes of a random sample of...
An air conditioning contractor has kept detailed records on the lifetimes of a random sample of 250 compressors. She plans to use the sample mean lifetime, x, of those 250 compressors as her estimate or he population mea lifetime μ o al such compressors if the e meso this randon compressor avea s...
1 answer
Part A Learning Goal: To understand the concept of moment of a force and how to...
Part A Learning Goal: To understand the concept of moment of a force and how to calculate it using a vector formulation. What are the x, y, and z components of the resulting moment acting on the merry-go-round about the origin? Express your answers numerically in pound-feet to three significant figu...
1 answer
1. What is the molarity of a solution of 50.0 g of propanol (CH3CH2CH2OH) in 152...
1. What is the molarity of a solution of 50.0 g of propanol (CH3CH2CH2OH) in 152 mL water, if the density of water is 1.00 g/mL?   a. 5.47 M b. 0.00547 M c. 0.833 M d. 0.183 M e. none of these 2. What is the mole percent of ethanol (C2H5OH), which consists of 71.0 g of ethanol for every 10...
1 answer
44. Based on the following reaction profile: Ish la) How many intermediates are formed in the...
44. Based on the following reaction profile: Ish la) How many intermediates are formed in the reaction A-D 1b) How many transition states are there? le) Which step is the slowest? Id) Is the overall reaction - exothermic or endothermic A) 3.2: Axothermic B)2:3. Bendothermic C) 3:4:B-C, exothermis D2...
1 answer
X 6.6.86 A random sample of size na 20 was drawn from a population of size...
X 6.6.86 A random sample of size na 20 was drawn from a population of size N= 300. The measurements shown in the table to the right were obtained a. Estimate with an approximate 95% confidence interval b. Estimate p, the proportion of measurements in the population that are greater than 30, with an ...
1 answer
Have you practiced any of the 10 sociopolitical categories in your role, what is reason that...
Have you practiced any of the 10 sociopolitical categories in your role, what is reason that you have done so. Was it done to gain credibility with your employees? Was it done to prove your capability to lead? Was it done for other reasons?...
1 answer
QUESTION 19 The inventory records for Radford Co. reflected the following:    Beginning inventory @ May...
QUESTION 19 The inventory records for Radford Co. reflected the following:    Beginning inventory @ May 1 1000 units @ $3.60 First purchase @ May 7 1100 units @ $3.80 Second purchase @ May 17 1300 units @ $3.90 Third purchase @ May 23 900 units @ $4.00 Sales @ May 31 3300 units @ $5.50 Wha...
1 answer
Question 11 1 pts Consider a perfectly competitive market with a binding price ceiling. Which of...
Question 11 1 pts Consider a perfectly competitive market with a binding price ceiling. Which of the following is true? O The quantity traded in this market is less than the efficient level O The quantity traded in this market is greater than the efficient level. The quantity traded in this market e...
1 answer
Simulation analysis is based on assigning a _____ and analyzing the results. Multiple Choice narrow range...
Simulation analysis is based on assigning a _____ and analyzing the results. Multiple Choice narrow range of values to a single variable narrow range of values to multiple variables simultaneously wide range of values to a single variable wide range of values to multiple variables simultaneo...
1 answer
4·Let A and B be non-empty subsets of a space X. Prove that A U B...
4·Let A and B be non-empty subsets of a space X. Prove that A U B is disconnected if A n B)U(A nB) 0. Prove that X is connected if and only if for every pair of non-empty subsets A and B of X such that X A U B we have (A B)U (An B)O....
1 answer
A monopolist has two specific demanders with demand equations: A = 10-p and B = 10...
A monopolist has two specific demanders with demand equations: A = 10-p and B = 10 -2p. This monopolist implements an optimal two-part tariff pricing scheme, under which demanders pay a fixed fee a for the right to consume the good and a uniform price p for each unit consumed. The monopolist chooses...
1 answer
Java programming Remaining Time: 22 minutes, 42 seconds. Question Completion Status: QUESTION 9 public static boolean...
java programming Remaining Time: 22 minutes, 42 seconds. Question Completion Status: QUESTION 9 public static boolean isTriangleValid(int a, int b, int c) { 1 2 boolean validA = a < b + c; boolean validB = b <a + c; 4 boolean validC = c <a + b; 5 6 return ...; Triangle inequality theore...
1 answer
Estion 14 Piezometric pressure will be constant along a line that is normal to straight and...
estion 14 Piezometric pressure will be constant along a line that is normal to straight and parallel streamlines, True False...
1 answer
I need a little assistance with the last section please.   The following information is available for...
I need a little assistance with the last section please.   The following information is available for Marin Corporation for 2016 (its first year of operations). 1. Excess of tax depreciation over book depreciation, $36,800. This $36,800 difference will reverse equally over the years 201...