Problem

What is the resultant sound level when an $82-$ d…

03:20

Question

Answered step-by-step

Problem 80 Hard Difficulty

A single mosquito 5.0 $\mathrm{m}$ from a person makes a sound close to the threshold of human hearing $(0 \mathrm{dB}) .$ What will be the sound level of 100 such mosquitoes?

Video Answer

Solved by verified expert

Textbook Answer

Official textbook answer

Video by Zachary Warner

Numerade Educator

This textbook answer is only visible when subscribed! Please subscribe to view the answer

Related Courses

Physics 101 Mechanics

Physics for Scientists and Engineers with Modern Physics

Chapter 16

Sound

Discussion

You must be signed in to discuss.

Top Physics 101 Mechanics Educators

Watch More Solved Questions in Chapter 16

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6

Problem 7

Problem 8

Problem 9

Problem 10

Problem 11

Problem 12

Problem 13

Problem 14

Problem 15

Problem 16

Problem 17

Problem 18

Problem 19

Problem 20

Problem 21

Problem 22

Problem 23

Problem 24

Problem 25

Problem 26

Problem 27

Problem 28

Problem 29

Problem 30

Problem 31

Problem 32

Problem 33

Problem 34

Problem 35

Problem 36

Problem 37

Problem 38

Problem 39

Problem 40

Problem 41

Problem 42

Problem 43

Problem 44

Problem 45

Problem 46

Problem 47

Problem 48

Problem 49

Problem 50

Problem 51

Problem 52

Problem 53

Problem 54

Problem 55

Problem 56

Problem 57

Problem 58

Problem 59

Problem 60

Problem 61

Problem 62

Problem 63

Problem 64

Problem 65

Problem 66

Problem 67

Problem 68

Problem 69

Problem 70

Problem 71

Problem 72

Problem 73

Problem 74

Problem 75

Problem 76

Problem 77

Problem 78

Problem 79

Problem 80

Problem 81

Problem 82

Problem 83

Problem 84

Problem 85

Problem 86

Problem 87

Problem 88

Problem 89

Problem 90

Problem 91

Problem 92

Problem 93

Problem 94

Problem 95

Problem 96

Problem 97

Problem 98

Problem 99

Problem 100

Problem 101

Problem 102

Problem 103

Problem 104

Problem 105

Problem 106

Problem 107

Problem 108

Problem 109

Video Transcript

says a single mosquito five meters from a person makes a sound close to the threshold of human hearing which is zero decibels. What will be the sound level of 100 such mosquitoes? So it wants us to find the sound level in vestibules of 100 such mosquitoes. If the sound level of a single zero Well, the definition of decibels is bait up, which would be the decibel is equal to 10 times the log of the ratio of I thean intensity of the sound guy Not okay. Well, the only way this could equal zero Well, since it's multiplied by 10 the only way could equal zero is just if the log of the ratio must be zero will only way The log of something can be zero is if it belong one a zero. So that means the ratio I tie knot must be zero. I know it is just a constant I know is equal to one times 10 to the minus 12. This is watts per meter squared. So I'm not too constant. So that must mean the intensity of the mosquito of just a single mosquito must be equal. I know, right? for that ratio to be one in order for that to be zero. So that means the intensity of one mosquito will say I'm one is equal to I Not now. We're asked, What's the intensity of 100 mosquitoes? Well, it's 100. I not so I have 100 huh? Equals 100 times. Why not? Right that 100 times. I know. Okay, So now if we want to help calculate the decibel level of that we do beta is equal to Ted Timesthe Log of 100 missy mosquitoes toe I not. So this would be 100 times. I not cause the log because 100 mosquitoes 100 times I know divided by I know. Okay, well, the Longs cancel. We'll do that in red. The eye not cancel. Do that, red. So we take the log of 100 multiply that by 10 and this is equal to 20 decibels. You can box that in Is your solution

Get More Help with this Textbook

Douglas C. Giancoli

Physics for Scientists and Engineers with Modern Physics

View More Answers From This Book

Find Another Textbook

Study Groups

Study with other students and unlock Numerade solutions for free.

Problem

What is the resultant sound level when an $82-$ d…

This textbook answer is only visible when subscribed! Please subscribe to view the answer

Related Courses

Physics for Scientists and Engineers with Modern Physics

Related Topics

Discussion

Top Physics 101 Mechanics Educators

Elyse Gonzalez

Andy Chen

Marshall Styczinski

Meghan Miholics

Physics 101 Mechanics Courses

Recommended Videos

Watch More Solved Questions in Chapter 16

Video Transcript

Douglas C. Giancoli

Physics for Scientists and Engineers with Modern Physics

Elyse Gonzalez

Andy Chen

Marshall Styczinski

Meghan Miholics

This textbook answer is only visible when subscribed! Please subscribe to view the answer

Physics for Scientists and Engineers with Modern Physics

Elyse Gonzalez

Andy Chen

Marshall Styczinski

Meghan Miholics

Douglas C. GiancoliPhysics for Scientists and Engineers with Modern Physics

Elyse Gonzalez

Andy Chen

Marshall Styczinski

Meghan Miholics

Douglas C. Giancoli

Physics for Scientists and Engineers with Modern Physics