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in the photo

Answer:

The intensity of sound in decibel is 65 dB

The intensity of sound in Watts/m² is 1 x 10⁻⁴ W/m²

Step-by-step explanation:

The intensity of sound in decibel is given by;

[tex]\beta (dB) = 10Log(\frac{I}{I_o})\\\\[/tex]

where;

I₀ is the smallest sound intensity that can be heard by the human ear = 1 x 10⁻¹² watts/m²

[tex]\beta (dB) = 10Log(\frac{I}{I_o})\\\\\beta (dB) = 10Log(\frac{3.2*10^{-6}}{1*10^{-12}})\\\\\beta (dB) = 65.05 \ dB[/tex]

= 65 dB

If the decibel level goes up to 80 dB, the intensity in W/m² is given by;

[tex]\beta (dB) = 10Log(\frac{I}{I_o} )\\\\80 = 10Log(\frac{I}{I_o} )\\\\8 =Log (\frac{I}{I_o} )\\\\10^8 = \frac{I}{I_o} \\\\I = I_o *10^8\\\\I = 1*10^{-12}*10^8\\\\I = 1*10^{-4} \ W/m^2[/tex]

Answer:

It increases the magnitude as amount of damage increases

Step-by-step explanation:

Hello, there! My name is Alice and I am here to help you today!

The answer is D)

Here are some notes that will help you with the whole lesson!

Earthquake: Sudden or violent shaking of the ground.

Epicenter: The point of the Earth's surface vertically above the focus of an Earthquake.

Focus: The focus is the place inside the Earth's crust where an earthquake originates.

Magnitude: The great size or extent of something.

Seismic wave: An elastic wave in the Earth.

Seismograph: An instrument that measures and records details of the Earthquake.

The Seismograph is used to find the Focus

Plate movement ⇒ Causes stress.

Stress ⇒ Increasing along faults.

Excess stress ⇒ Leads to rock breaking and an earthquake begins.

Earthquakes begin in the Lithosphere, usually 100km below the surface.

• Earthquakes have two centers

• The focus is the area beneath the surface where rocks beneath break under stress. It is the starting point of an Earthquake

• The Epicenter is the point on the surface directly above the focus

Earthquakes are caused by plate movement. And they begin at the focus.

• Waves carry energy as they travel

• The waves produced by an Earthquake are called Seismic waves

        Seismic waves are classified into three categories

                           « P waves (primary) »

• Arrive first, travel fastest

• Compressed and expand the ground like an accordion

• Travel threw solids and liquids

                      « S waves (secondary) »

• Arrive after P waves

• Vibrate from side to side and up and down

• Shake structures violently when they reach the surface

• Travel ONLY threw solids

                             « Surface waves »

• Travel ONLY on the surface

• Were P and S waves move

• Move slowly

• Can produce dramatic ground movement

• May make the ground roll

The Mercalli scale rates an earthquake according to how much damage it causes. And has 12 levels of intensity.

The Mercalli scale rates earthquakes based on the amount of damage they cause.

The Richter scale measures magnitude based on the size of seismic waves.

• Magnitude is determined by measures based on the size of seismic waves.

• Seismic waves are measured by a seismograph

• This scale is good for measuring small, nearby earthquakes

The moment magnitude scale estimates the total energy released by an earthquake.

• Useful for earthquakes of all sizes and distances

• Data collected with seismographs

• Shows what kind of waves were produced and their strength

The Moment of magnitude scale takes into account the movement of rocks along fault lines.

The Sumatra earthquake of 2004 is the third strongest earthquake ever recorded.

• Measured 9.1-9.3 on the Moment magnitude scale

• Measured at the maximum intensity on the Mercalli scale

• Lasted approximately 9 minutes, the longest duration ever measured

• Triggers a massive tsunami and killed  approximately 250,000 people

Geologists use Sisemic waves to locate an earthquake's Epicenter.

• Use Siesmograph  to measure the difference between the arrival of P and S waves

• Compare data to seismographs from around the world

Earthquakes are caused by stress along faults due to plate movement.

«Traveling Of Energy»

• Seismic waves travel in all directions

• Three types of waves:

• P waves (primary)

• S waves (secondary)

• Surface waves

«Measuring Earthquake   Energy»

• Mercalli scale

• Richter scale

• Moment magnitude scale

«Locating The Epicenter»

• Distance of epicenter measured from at least three seismographs

• Location of the epicenter is where three measurements overlap

Have a great day!

Answer:

27

Step-by-step explanation:

90-63

Answer:

27

Step-by-step explanation:

coplimentary angles mean add up to 90 so

90-63=27

Answer:

8-7x

Step-by-step explanation:

3x2-7x+2

6-7x+2

8-7x

Answer:

A. 1.25

Step-by-step explanation:

Answer:

all the sides multiplies should equal 48

Step-by-step explanation:

sorry I don't know

The rectangle will have a 432 yd² area.

The area is the entire amount of space occupied by a flat (2-D) surface or an object's form. On a sheet of paper, draw a square using a pencil. It has two dimensions. The area of a form on paper is the area that it occupies.

Given, The length of a rectangle is three times its width. if the perimeter of the rectangle is 48 yd

Let "l " be the length of the rectangle

thus, the width of the rectangle = l/3

Since the Perimeter of the rectangle  = 48 yd

From the general formula of the Perimeter of the rectangle:

perimeter = 2*(length + width)

In our case

Perimeter = 2*( l + l/3)

Perimeter = 2*(2l/3)

Perimeter = 4L/3

Thus,

4L/3 = 48

L = 36 yd

So width = 36 /3 = 12

Since the area of the rectangle = length * width

Area = 12 * 36

Area = 432

therefore, the area of the rectangle will be 432 yd².

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Answer:

-(p - t^2) (p^2 + p t^2 + t^4)

Answer: $6000

Hope this helps!-xoxo

Answer:

Hi there

Your answer is

width= 5.75

length= 9.5

Step-by-step explanation:

L=2w-2

P=42

Perimeter formula

L+L+W+W=P

(2w-2)+(2w-2)+w+w=42

8w-4=42

+4

8w=46

/8

w= 5.75

Plug in width in length formula!

L=2w-2

L=2(5.75)-2

L=9.5

Answer:

m= -8

Step-by-step explanation:

Answer:

m=-8

Step-by-step explanation:

Hope this helps :)

Answer:

2.75

Step-by-step explanation:

0.10 represents the rate at which prices have increased since 1980..

2.75 represents the price in 1980

This can be confirmed by inputting 0 as the value of x.

2.75+0.10(0) = 2.75

Answer:

25

Step-by-step explanation:

[tex](7 - 2) { }^{2} [/tex]

[tex] = 5 { }^{2} [/tex]

[tex] = 25[/tex]

Answer: 1,315

528

+787

---------

1315

Answer: 1315

Step-by-step explanation:

1 1

528

+787

1315

Answer:

Step-by-step explanation:

They should purchase the $369 one with the $9 plan.

330 + (14x8) =442

369+ (9x8) = 441

Hope this helps!

Answer:

rational functions that model the average annual cost of each television if it is owned for x years, such as f(x)= (330+14x)/x and

g(x)= (369+9x)/x

calculation proving that over 8 years, the annual cost for the $330 television is $55.25; for the $369 television, it is $55.13

statement that the Gordons should buy the $369 television because it is less expensive overall

Step-by-step explanation:

edge 2022

Answer:

hypotenuse² = b² + h²

x² = b² + h²

=> x² = 6² + 4²

=> x² = 36 + 16

=> x² = 52

=> x = √52

=> x = 7.21

Answer:

B. -5 ≤ x ≤ 5

Step-by-step explanation:

Domain is the set of x-values that can be inputted into function f(x).

We see that our x-values span from -5 to 5. Since both are closed dots, they are included in the domain:

[-5, 5] or -5 ≤ x ≤ 5

Answer:

A, if continuous; c, if not

continuous is if it has arrow

Step-by-step explanation:

x  is the line across

Answer:

Length 6 width 3

Step-by-step explanation:

3×6=18

3 is double 6

Answer:

Each child will get 1/4 of a pie

Step-by-step explanation:

Answer:

1. 25% increase

2. 90% decrease well you get 8.4 but that's the closest

3. 71% increase

4. 20% decrease

5. 75% decrease

6. 150% increase

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

Answer:

7 hundredth is the value of 7 in the question

Answer:

  102,100 decigrams

Step-by-step explanation:

  (564 dag + 458 dag) = 1021 dag

  1021 dag × 100 dg/dag = 102100 dg

The two cases together weigh 102,100 decigrams.

_____

1 dag = 10 g

1 dg = 0.1 g

Answer:

102,100 decigrams.

Step-by-step explanation:

Answer:

x = 9

Step-by-step explanation:

Given:

m<1 = 8x

m<2 = (10x - 18)

Required:

Value of x

Solution:

<1 and <2 are alternate exterior angles. Alternate exterior angles are congruent. Therefore:

m<1 = m<2

8x = 10x - 18 (substitution)

Solve for x

8x - 10x = -18

-2x = -18

-2x/-2 = -18/-2

x = 9

Answer:

17 L 735 mL or 17,735 mL

Step-by-step explanation:

18,530 - 795 = 17 L 735 mL

Answer:

the answer is (domain, range) or (x,y)

An ordered pair is written as, (domain, range). So Option A is correct

The domain of a function is the set of all input values (independent variable) for which the function is defined and produces a valid output (dependent variable).

The range of a function is the set of all possible output values of the function. It represents the set of all possible values of the dependent variable.

The set of all "x" values constitutes the domain, and the set of all "y" values constitutes the range, in a set of ordered pairs.

You should keep in mind that ordered pairs are represented by the following symbols: (x, y).

Find the domain when examining a collection of ordered pairs by compiling a list of all the relation's x values.

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Answer:

Hey looks like you did'nt post the question

msg me below and ill try to help you

Answer:

i think it would be A

Step-by-step explanation:

Answer:

I think the answer is 45/4 i'm so sorry if the answer is wrong

Step-by-step explanation:

Answer:

11 1/4

Step-by-step explanation:

Answer:

18x

Step-by-step explanation: