In air, a sound wave with a frequency of 196 hz has a wavelength of about 1.76 meters. what is the wavelength of a wave if the frequency is increased to 784 hz?

Answers

Answer 1

The wavelength of the sound wave if the frequency is increased to the given value is 0.44m.

Wavelength

Wavelength is simply the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.

It is expressed as;

[tex]\lambda = \frac{v}{f}[/tex]

Where v is velocity and f is frequency.

Given the data in the question;

Frequency of sound wave a; [tex]f_a = 196Hz = 196s^{-1}[/tex]Wavelength of sound wave a; [tex]\lambda _a = 1.76m[/tex]

Speed of sound wave; [tex]v =\ ?[/tex]

Frequency of sound wave b; [tex]f_b = 784Hz = 784s^{-1}[/tex]

Wavelength of sound wave b; [tex]\lambda _b = ?[/tex]

First, we calculate the velocity of the sound wave in air from sound wave a.

[tex]\lambda = \frac{v}{f}\\ \\1.76m= \frac{v}{196s^{-1}}\\\\v = 1.76m * 196s^{-1}\\\\v = 344.96m/s[/tex]

Now, we determine the wavelength of sound wave b using the velocity of sound wave in air calculated above.

[tex]\lambda = \frac{v}{f}\\ \\\lambda = \frac{344.96m/s}{784s^{-1}}\\\\\lambda = 0.44m[/tex]

Therefore, the wavelength of the sound wave if the frequency is increased to the given value is 0.44m.

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Answer 2

Answer:

It decreases by 1.32 meters.

Explanation:

The other person was wrong.


Related Questions

A female giraffe has 62 chromosomes in each of her skin cells how many chromosomes will be in the skin cells of her offspring

Answers

The number of chromosomes that will be in the skin cells of each of her offspring is; 62

What is the number of chromosomes in the offspring?

Male and female animals differ in the number of se x chromosomes they have. A male animal carries one X chromosome  which is received from his mother as well as one Y chromosome which is received from his father. However, a female animal carries two copies of the X chromosome which is one from each parent.

Now, we are told that the female giraffe has 62 chromosomes in each skin cell and as such it means that the offspring will also have 62 chromosomes in each skin cell.

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9-5 skills practice solving quadratic equations by completing the square

Answers

An example of 9-5 practice question on quadratic equations by completing the square is   5x2–2x−9=0.

What are  quadratic equation?

This is known to be a type of  algebraic expression that is based on the second degree in x. The quadratic equation often exist in a standard form such as  ax2 + bx + c = 0.

To solve for   5x2–2x−9=0

Then you have to rearrange the equation into:

x2−(2/5)x−9/5=0

= x2−(2/5)x=9/5

= (x−(2/10))2−(2/5)2=9/5(here b = 2/5)

= (x−(2/10))2=46/25

Then you take the square root on both sides

= (x−(2/10))=±1.356

Therefore  x=1.556  or say −1.156.

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Should the west asian include art in their religion

Answers

Yes, they should. The art will be good

Two identical regular hexagons are joined together

Answers

What exactly is the question here?

Answer:

The answer is x=120 °

Explanation:

Bill was injured on the job and hospitalized for several months

Answers

Answer:

WHAT HAPPENED TO BILL AFTER THAT???

Ecoskate makes skateboards from recycled plastic. for a recent job lot of 100 skateboards, the company incurred direct materials costs of $600 and direct labor costs of $200. factory overhead applied to this job is $900. required: 1. what is the total manufacturing cost of this job lot? 2. what is the cost per skateboard?

Answers

Answer:

32$ per skateboard for this question

In the interview, dr. dowell mentions that we live in a "small world." the video explains that disease can spread in a matter of hours when people travel by airplane. how does the video connect to what dr. dowell says? the video discusses disease but avoids how diseases spread. the video gives the same information as the interview about the spread of disease. the video gives less information than the interview about how easily disease can spread. the video gives more specific information about how easily diseases can spread.

Answers

Answer:

D

Explanation:

edge 2022

it's right all you have to do is trust me

Answer: D or The video gives more specific information about how easily diseases can spread.

Explanation: got it on edge 2022

A woman sells her home for $450 000. she had purchased it for $300 000

Answers

Answer:

$750

Explanation:

450+300=$750 u add 4+3=7 add 5+0=5 add a zero at the end equals 750

Her profit is $450,000-$300,000=$150,000

Course 1 chapter 10 volume and surface area answer key

Answers

An example of Course 1 chapter 10 volume and surface area question is find the volume of the figure (image attached.) The volume is option C.

What is the surface area?

Surface area is a term that connote the total area which the surface of the object is said to occupy. It is often divided into a sum of base area(s) and also lateral surface area.

To solve for the volume,

v = ewh

v 7.2 (3.2) (5.2)

Therefore, v = 125.528m³

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A board that is 12 feet long must be cut into two pieces

Answers

Answer:

6 feet

Explanation:

If you're asking how long each piece is it will be 6 feet.

12 divided by 2 is 6.

Mark wants to determine the height x of a nearby tree

Answers

The height of the tree that can be determined by Mark will be 27.6 feet.

How to calculate height?

From the complete question, Mark wants to determine the height x of a nearby tree as he stands 47 feet from the base of the tree and the measure of the angle of elevation is 36°.

The height of the tree will be:

= 47 × sin 36°

= 47 × 0.5878

= 27.6

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At which event must special care be taken when preparing food

Answers

Answer:

occasions

Explanation:

During occasions such as Easter, Christmas etc when preparing a food take risk and measures make it delicious

I run a book club with $n$ people, not including myself. every day, for $365$ days, i invite three members in the club to review a book. what is the smallest positive integer $n$ so that i can avoid ever having the exact same group of three members over all $365$ days?

Answers

The smallest positive integer n so that you can avoid ever having the exact same group of three members over all 365 days is; 11

How to solve probability combination?

if we have n people and we want to do groups of 5, the total number of different combinations is:

ⁿC₅ = n!/((n - 5)!5!)

By using the Brute force method, we have;

If n = 5,

c = 5,

Thus;

C₅ = 5

If n = 6,

c = 6,

Thus;

C₅ = 6

If n = 7,

c = 7,

Thus

C₅ = 21

If n = 8,

c = 8,

Then;

C₅ = 56

Now, If n = 9,

C = 9!/((9 - 5)!5!)

C = 126

We want to find the smallest n such that c > 365. Thus, C = 126 is too small.

Let's try n = 11;

C = 11!/(6! * 5!) =  462

This is greater than 365 and so we need at least 11 members in the club.

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15.4 segment relationships in circles homework answers

Answers

The length of the segment is an illustration of intersecting chords

The value of x is x = 27/14

How to determine the length of the segment?

From the complete question (see attachment), we have:

AD = 12

AE = 3

BE = 14

EC = x

Start by calculating the length of ED

ED = AD - AE

This gives

ED =12 - 3

ED =9

The value of x is then calculated as:

x * BE = AE * ED

Substitute known values

x * 14 = 3 * 9

Evaluate the product

x * 14 = 27

Divide both sides by 14

x = 27/14

Hence, the value of x is x = 27/14

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How many different nth roots does a nonzero complex number have?

Answers

The Complex nth Roots Theorem with any nonzero complex number has exactly n ∈ N distinct nth roots.  

What is a non-zero complex number?

This is the quantity which does not equal zero is said to be nonzero. A real nonzero number must be either positive or negative, and a complex nonzero number can have either real or imaginary part nonzero.

The roots lie on a circle of radius centered at the origin and spaced out evenly by angles of 2π/n.

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A large industrial machine is able to monitor brainly

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yes, they just monitor by flagged key words.

12.3 geometric series evaluate homework and practice

Answers

The geometric series would have a uniform common ratio

The recursive definition of the geometric sequence is [tex]a_n = 4a_{n-1}[/tex] where a1 = 128

How to determine the geometric series?

Assume the geometric sequence is given as:

128,32,8,2

And the question requires the recursive definition of the geometric series

Start by calculating the common ratio (r)

[tex]r = \frac{a_{n}}{a_{n-1}}[/tex]

Substitute 2 for n

[tex]r = \frac{a_2}{a_1}[/tex]

Substitute known values

[tex]r = \frac{128}{32}[/tex]

Evaluate the quotient

[tex]r = 4[/tex]

Substitute 4 for r in [tex]r = \frac{a_{n}}{a_{n-1}}[/tex]

[tex]4 = \frac{a_{n}}{a_{n-1}}[/tex]

Cross multiply

[tex]a_n = 4a_{n-1}[/tex]

Hence, the recursive definition of the geometric series is [tex]a_n = 4a_{n-1}[/tex] where a1 = 128

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It is the amount of fat cells compared with lean cells in the body mass

Answers

Answer:

Lean Body Mass

Explanation:

is calculated as the difference between total body weight and body fat weight

In "a worn path," phoenix jackson ultimately shows herself to be someone whose actions are all done out of __________. question 1 options: selfishness and bitterness dedication and love confusion and anger confidence and faith

Answers

Answer:

dedication and love

Explanation:

In "a worn path," phoenix jackson ultimately shows herself to be someone whose actions are all done out of Dedication and Love.

What is Phoenix jackson?

Phoenix Jackson is a courageous, crafty, and lovable elderly woman. The 1940s are the setting for "A Worn Way," and Phoenix makes several references to her age. She was raised under slavery and experienced both Reconstruction and the Civil War.

The story takes place when she is an elderly woman residing in the Deep South during the Jim Crow era, a set of laws designed to keep Black people segregated and powerless following slavery.

Phoenix has through and witnessed during her life, her arduous quest to obtain medication for her grandson is a reflection of the numerous challenges she has encountered and overcame.

Therefore, In "a worn path," phoenix jackson ultimately shows herself to be someone whose actions are all done out of Dedication and Love.

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which of the following explains a limitation of the three-tiered structure of wallerstein’s world systems theory?

Answers

The statement that explains the limitation of the world systems theory is that the model locks most countries into three-tiered structure with little opportunity for peripheral economies to advance into the wealthy core.

What is the Wallerstein’s world systems theory?

This theory is an approach towards the world history and social change that suggests there is a world economic system in which some countries benefit while others are exploited.

This theory was developed by a sociologist named Immanuel Wallerstein. It is structured into three tier namely:

core,

core, periphery, and

semi-periphery.

The limitations of the Wallerstein’s world systems theory:

It fails to fully account for the rise in globalization as a new phenomenon.

It fails to give enough credence to forces like social class.

It puts too much emphasis on economics rather than culture because it locks most countries into the development model of core, semiperiphery, and periphery.

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The code for the genetic traits of an organism is directly determined by the

Answers

Traits are determined by genes, and also they are determined by the interaction with the environment with genes. And remember that genes are the messages in our DNA that define individual characteristics. So the trait is the manifestation of the product of a gene that is coded for by the DNA.

Alice says she can find the area of the room by dividing

Answers

I found the complete problem.

If Alice divides it into two trapezoids, the area formula would be: A = [(a+b) / 2] * h

Trapezoid 1

A = [(7.5 + 15)/2 * 5

A = (22.5/2) * 5

A = 11.25 * 5

A = 56.25 sq. ft

Trapezoid 2

A = [(5 + 10)/2 * 7.5

A = (15/2) * 7.5

A = 7.5 * 7.5

A = 56.25 sq. ft

Total area = 56.25 + 56.25 = 112.50 sq. ft.

What does it mean for a membrane to be selectively permeable brainly

Answers

Answer:

Selective permeability of the cell membrane refers to its ability to differentiate between different types of molecules, only allowing some molecules through while blocking others.

If two organisms have similar traits of dna they are probably

Answers

Answer:

they probably share a common ancestor

Since 2000 aaron donald is the only dt to win defensive rookie of the year

Answers

Answer:

yes because he is really good

Explanation:

yes

Since Tim Duncan in 1998, a rookie hasn't been selected to one of the NBA's All-Defensive teams. According to Basketball Reference, the former star player for the San Antonio Spurs is one of five first-year players who made the squad.

What  Aaron Donald, dt to win defensive rookie of the year?

Most-graded rookie defender: Jack Jones of the New England Patriots has earned an exceptional 87.1 overall rating, which is also the highest rating among all NFL cornerbacks.

Five of the other 10 players who had a 20/20 season in their first year went on to win the Rookie of the Year title for their respective leagues. And the other five received significant consideration for the prize, except Ellis Burks, who received zero votes.

People often cite the Baltimore Ravens from 2000 as an example of how defense can win championships. The Ravens defeated their opponents by a score of 4-0 that season.

Therefore, They hold the record for fewest rushing yards against and fewest points surrendered in a season of 16 games, respectively.

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An executor should be willing and reliable because brainly

Answers

The reason why the executor should be reliable is because; such a person is dealing with a very delicate thing that loss could be devastating.

What is the role of an executor?

An executor is simply a person named in a will whose job it is to sort out the estate of the person who has died. The estate includes everything owned such as money, property and possessions.

Before appointing someone as an executor, it is very vital to carry out a background checks to ensure that the person has not been found guilty of fraud, theft or unethical practices in the past. This is because the person must have integrity to carry out this role.

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Answer:

need to be trusted to carry out will instruction

Explanation:

In florida, the class e driver license is for drivers of _____.

Answers

Answer:

personal vehicles

Explanation:

like an automobile

drag the labels to identify the events in the generation of an action potential in order and correctly name the refractory periods.

Answers

An absolute refractory period occurs during depolarization while the relative refractory period takes place during repolarization.

What is an action potential?

An action potential refers to a sudden, quick change in electrical potential (voltage) during the transmission of an impulse (signal) to a receptor, across a cellular membrane.

The order of events in the generation of an action potential include the following:

At -60 mV, graded depolarization transmits an area of excitable membrane to threshold.At +30 mV, voltage-gated sodium channels are opened for sodium ions to move into the cell. As repolarization begins, sodium channels close, voltage-gated potassium channels are opened for potassium ions to move out of the cell. Finally, both sodium and potassium channels return to their normal states as the potassium channels is closed.

In conclusion, an absolute refractory period occurs during depolarization while the relative refractory period takes place during repolarization.

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Read the excerpt from "a worn path." 'phoenix spoke unasked now. "no, missy, he not dead, he just the same. every little while his throat begin to close up again, and he not able to swallow. he not get his breath. he not able to help himself. so the time come around, and i go on another trip for the soothing-medicine." "all right. the doctor said as long as you came to get it, you could have it," said the nurse. "but it's an obstinate case."' what is the most likely the meaning of obstinate?

Answers

The most likely meaning of the word Phoenix from the given excerpt titled "a worn path" is; Stubborn

What does the phoenix symbolize?

The phoenix bird is one that symbolizes immortality, resurrection, and life after death. In the ancient Greek and Egyptian mythology, it was usually associated with the sun god.

Obstinate, dogged, stubborn, and mulish all mean that someone is unwilling to change course or give up a belief or plan.

Obstinate means an unreasonable persistence which is a negative word.

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Which additional fact would prove that quadrilateral wxyz is a parallelogram?

Answers

The quadrilateral wxyz has four sides

The additional fact that would prove that quadrilateral wxyz is a parallelogram is that XY = WZ

How to prove that wxyz is a parallelogram?

For a shape to be a parallelogram, the folllowing must be true

The shape must be a quadilateralThe opposite sides of the shape must be congruentThe opposite sides of the shape must be parallel

Hence, the additional fact that would prove that quadrilateral wxyz is a parallelogram is that XY = WZ

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Sometimes it is very hot in the jungle.Then as night fell and as darkness descended, they were already there in the jungle. The father told the boy, You have to pass this test my son or else I will be ashamed before our tribesmen. You will never be recognized as a grown-up man and, if you are not initiated, they will not make you a soldier. The boy could not do anything but obey his father. But you know he was trembling in fear. He could not complain as the father told him, I will leave you now my son. There is no food, and there is no weapon for defense. Fend for yourself. In that empty darkness, the father left the boy.Now, the boy, alone, stayed there against a trunk of a big tree, shivering in a cold night, yet sweating beads of hot perspiration because of fear. Every rustle of the leaves made him tremble because it might be the movement of a snake. Every crack in the branch of a tree, within his mind, looked like a leopard ready to pounce on him. Every footstep might be the footstep of a lion ready to devour him. So he was not able to sleep for many hours. He was shivering there thinking What kind of father is he? If he loves me, why does he conform to the laws of the tribe and leave me here to die? Why does he have to abandon me for the sake of his pride? But then he could not even cry a complaint because he was afraid if he cried the wolves would come and tear him to pieces. He was even very careful with his breathing because his breathing might attract the snakes. But he was there. He could not even move because when he moved he was afraid it was not his movement. It might be something else. Finally, he was very sleepy and the poor boy fell asleep terrified with fear. The morning came and the sun emerged from the mountain beyond the forest, casting resplendent beams like the illumination of the thousand diamonds reaching the earth. The streaks of light sparkling on the dewy leaves of the trees. The boy was speechless. 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