The loudness level of a sound, D, in decibels, is given by the formula D = 10 log ( 10 12 I ) , where 1 is the intensity of the sound, in walls per meter 2 . Decibel levels range from 0, a barely audible sound, to 160, a sound resulting in a ruptured eardrum. (Any exposure to sounds of 130 decibels or higher puts a person at immediate risk for hearing damage.) Use the formula to solve Exercises 117-118. The sound of a blue whale can be heard 500 miles away, reaching an intensity of 6.3 × 10 6 watts per meter 2 . Determine the decibel level of this sound. At close range, can the sound of a blue whale rupture the human eardrum?
The loudness level of a sound, D, in decibels, is given by the formula D = 10 log ( 10 12 I ) , where 1 is the intensity of the sound, in walls per meter 2 . Decibel levels range from 0, a barely audible sound, to 160, a sound resulting in a ruptured eardrum. (Any exposure to sounds of 130 decibels or higher puts a person at immediate risk for hearing damage.) Use the formula to solve Exercises 117-118. The sound of a blue whale can be heard 500 miles away, reaching an intensity of 6.3 × 10 6 watts per meter 2 . Determine the decibel level of this sound. At close range, can the sound of a blue whale rupture the human eardrum?
Solution Summary: The author calculates the decibel level of the sound of blue whale and whether it can rupture the human eardrum.
The loudness level of a sound, D, in decibels, is given by the formula
D
=
10
log
(
10
12
I
)
,
where 1 is the intensity of the sound, in walls per meter2. Decibel levels range from 0, a barely audible sound, to 160, a sound resulting in a ruptured eardrum. (Any exposure to sounds of 130 decibels or higher puts a person at immediate risk for hearing damage.) Use the formula to solve Exercises 117-118.
The sound of a blue whale can be heard 500 miles away, reaching an intensity of
6.3
×
10
6
watts per meter2. Determine the decibel level of this sound. At close range, can the sound of a blue whale rupture the human eardrum?
eric
pez
Xte
in
z=
Therefore, we have
(x, y, z)=(3.0000,
83.6.1 Exercise
Gauss-Seidel iteration with
Start with (x, y, z) = (0, 0, 0). Use the convergent Jacobi i
Tol=10 to solve the following systems:
1.
5x-y+z = 10
2x-8y-z=11
-x+y+4z=3
iteration (x
Assi 2
Assi 3.
4.
x-5y-z=-8
4x-y- z=13
2x - y-6z=-2
4x y + z = 7
4x-8y + z = -21
-2x+ y +5z = 15
4x + y - z=13
2x - y-6z=-2
x-5y- z=-8
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2025.01.31 22:35
f
Use Pascal's triangle to expand the binomial
(6m+2)^2
Listen
A falling object travels a distance given by the formula d = 6t + 9t2 where d is in feet
and t is the time in seconds. How many seconds will it take for the object to travel
112 feet? Round answer to 2 decimal places. (Write the number, not the units).
Your Answer:
Chapter 4 Solutions
Algebra & Trigonometry With Additional Material From College Algebra Essentials (custom Edition For Tidewater Community College)
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