When an ambulance passes you, the pitch seems to change as it speeds by. This is called the Doppler Effect. Please use complete sentences in your answer.

1-Describe what happens to the sound waves as the ambulance approaches you. How would you hear the sound waves? (2 pts.)

2-Describe what happens to the sound waves as the ambulance moves away from you. How would you hear the sound waves now? (2 pts.)

Answers

Answer 1

Answer & Explanation:

As the ambulance approaches you, the distance between the source of the waves and the observer decreases. As a result, the siren sounds more shrill as the pitch of the wailing siren sounds "higher" than its original value, as sound waves reach you more frequently due to the shorter distance.

The opposite occurs when the ambulance moves away from you. The distance between the ambulance (source of sound waves) and the observer increases. As a result, the siren sounds less shrill and sounds "lower" than its original value since the wave reach you less frequently given the greater distance.

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Related Questions

Write an essay of at least three paragraphs, supporting the assertion that Lady Macbeth and Macbeth both waver between extreme confidence and great doubt. Be sure to include evidence from the text to support your answer. Remember to clearly state your main point and use correct citation in your response.

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Answer:

Use essay typer, it will type it for you.

Explanation:

Which description best matches a cold front?

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Answer:

A cold front is defined as the transition zone where a cold air mass is replacing a warmer air mass. Cold fronts generally move from northwest to southeast. The air behind a cold front is noticeably colder and drier than the air ahead of it.

By some estimates, as much as 50% of the information we think of as news originated from a PR company. How do you feel about that statistic? Do you think most people realize this?

Answers

Answer and Explanation:

How do you feel about that statistic?

That statistic makes me feel deceived, misled. Such a high number means half of the information conveyed to us is not completely trustworthy. It is what PR companies want us to think, not real information which we can use to think for ourselves. It is quite a sad reality, and it shows we still have a long way to go before we can think of ourselves as truly free. Knowledge is the rock upon which we can build our freedom. Without it, we are easily controlled and kept chained by those in power.

Do you think most people realize this?

I do not think people realize this. If more people knew about this, there would likely be a public outcry for change and better ways to filter what truly is news and what is not. That is obviously a difficult endeavor. But, just as so many others throughout history, it is worth fighting for.

many works of literature features characters who have been given a literal or figurative gift. yet this gift is often also a burden or a handicap. what gift was given to edna that is both a pblem and an advantage. then write a well developed essay analyzing the complex nature ofthe gift and how the gift contributes to the meaning of the work as a hole

Answers

Answer and Explanation:

Edna has the gift of recognizing her wishes and having the courage to follow and conquer them. She does not deprive herself of social concepts in relation to women and acts according to her own convictions. This is a strong gift, as it is not easy for anyone, even nowadays, to follow everything they most want without caring about society's opinion and judgments.

However, Edna's gift also causes problems for her. This is because, her attitude generates judgments not only to her, but her family, especially to her children, causing them to be harmed. This retracts Edna and is capable of causing even her death.

who comes into the Grand High Witch's hotel room as Luke is in
there?

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Answer:

What?????????????????

Try mathnasiam it will help!!

what is the right subject and verb agreement someone at the stables groom/grooms the horse every morning​

Answers

it would be grooms because there is more then one horse

Which of the following is an example of a hyperbole?
I was so hungry my stomach was growling.
I was so hungry I was a starving lion, prowling for my meat.
I was as hungry as an underfed Oliver Twist.
I was so hungry I could have eaten everything on the menu.

Answers

The sentence which is an example of hyperbole is "I was so hungry I was a starving lion, prowling for my meat." Thus, Option B is correct.

What do you mean by hyperbole?

A rhetorical device or figure of speech used in the form of an exaggeration is referred to as hyperbole. Auxesis is some other call for it in rhetoric. It accentuates, arouses sturdy emotions, and leaves an enduring effect in poetry and oratory.

It is generally now no longer intended to be taken actually due to the fact it's far a discern of speech.

Thus, The sentence which is an example of hyperbole is "I was so hungry I was a starving lion, prowling for my meat."Option B is correct.

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Answer:

B

Explanation:

When the Atlantic Slave trade was outawed in 1807, what started happerning to tribal
kingdorms that gained power and influence during the trade's existence?
O Continued to dominate their region and export goods like gold, rubber, and chocolate
O Fell apart, leaving thernselves vulnerable to European conquest in the late 1800s
O Were toppled by rival tribes decades later
O Grew stronger as they found other valuable exports in Africa

Answers

Answer:

B fell apart

Explanation:

A student is concluding an essay about the benefits of fuel-efficient cars. Which of the following would best conclude that essay? (5 points) Using oil as a fuel has negative consequences for the environment. More efficient cars are interesting to many people not learning to drive. We make change happen by taking an interest in the choices we have. Increasing fuel efficiency can help us both financially and ethically.

Answers

Answer:

If the essay is about the benefits of fuel-efficient cars you won't want to add anything negative about it so I would go with "The increasing fuel efficiency can help us both financially and ethically" which sums up what the essay is about.

Answer:

Increasing fuel efficiency can help us both financially and ethically.

Explanation:

In paragraph 2, what does the sentence "They look just like fleecy rainbows“ suggest about the
flowers?
A The flowers are colorful and fuzzy,
The flowers are wet and flufly.
The flowers are striped and shaggy.
The flower are transparent and puffy.
I really don’t know help

Answers

The flowers are colorful and fuzzy

hermoni Granger ru online ​

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Answer:

sbndndnfb

Explanation:

sbhdbdbnfnfnfnnf

Which of the following is the most concise revision of the passage?

As the name suggests, junk food is not a healthy meal choice. It is not ideal for regular consumption. It has little to no nutritional value because it lacks essential vitamins, minerals, and proteins. Junk food sometimes contains a lot of sugar, which can lead to diabetes. It is also high in fat and calories, which may lead to a number of chronic diseases.

A.
Junk food has very little nutritional value because it doesn’t contain vitamins and minerals. It is also high in sugar content.
B.
Junk food is bad for regular consumption. It contains a lot of sugar and calories, which is bad for your health.
C.
Junk food is not ideal for regular consumption because it has little nutritional content and excessive calories, which may lead to health issues.
D.
Junk food is not the best kind of food to eat and should be avoided as much as possible. It has no or little nutritional content. It has no minerals and vitamins in it.

Answers

Answer:

Yes in spanish is C.

Explanation:

LOL

Junk food is not ideal for regular consumption because it has little nutritional content and excessive calories, which may lead to health issues is the most concise revision of the passage. Hence, option C is correct.

What is Junk food?

Foods that are high in fats, salt, and sugar but low in nutrients like fiber, vitamins, and minerals are referred to as "junk food."

Fast food and junk food are both referred to as "junk food," which is described as "those commercial products, such as candy, bakery goods, ice cream, salty snacks, and soft beverages, that have little to no nutritional value but are high in calories, salt, and fats.

Junk food is low in vital elements like fiber, vitamins, and minerals but heavy in calories, sugar, and fat. They are believed to be a major contributor to the obesity pandemic and a catalyst for the emergence of some chronic illnesses.

Thus, option C is correct.

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When there is a cause and effect relationship, there can only be one effect.

Answers

Answer:

false, there can be multiple

Explanation:

Which sentence uses correlative conjunctions?
A. On her way to the park, Letty found both a purse and a cell phone.
B. Fred wanted to play his video game, but he had to finish his homework first.
C. Angie added up her allowance and found that she had enough to buy the sports shoes.
D. In art class, we all had to draw the still life, or we would not be ready to paint it the next day.
asap i have a test.

Answers

Answer:

i think its B

Explanation:

if wrong dont kill me

Brainly

Manuel feels like he is ready for his test in biology. He has studied all week and has gotten ten hours of sleep the night before the test. The day of the test, he eats only pancakes and leaves early for the exam. Before the exam starts, he takes a couple of deep breaths and “sees” himself doing well on the test. When the test begins, however, he has trouble concentrating. When he hands in his test, he believes that he didn’t do as well on the test as he could have.





Which is the most likely reason for Manuel not doing as well on his test as he thought he would?

He is not relaxed.
He has not eaten a balanced breakfast.
He is not prepared for the test.
He is tired.

Answers

Answer:

He has not eaten a balanced breakfast

Explanation:

Everything else he did before his test was good preparation.

Answer:

B

Explanation:

He has not eaten a balanced breakfast.

In this section of reading, Jem is proud of Atticus because__
Atticus is decent and humble
Atticus is old
Atticus is a great shot
Atticus saved the neighborhood
someone who actually knows what they are talking about please help

Answers

Depends on which chapter the section is from but if the section is the one where Atticus kills the mad dog (which I suspect it is) then the answer is Atticus is a great shot

Determine whether a formal or informal tone is needed for each audience.
your best friend
the school principal
a religious figure
in the community
a younger cousin
the mayor of your city
a classmate

DIVED THEM BY FORMAL AND INFORMAL PLEASE HELP

Answers

Answer:

Best friend: informal

Principal: forma

Religious figure: formal

Community: Id say formal but it could be formal

Younger cousin: informal

Mayor: formal

Classmate: informal

Explanation:

formal:

the school principal

the mayor of your city

a religious figure in the community

informal:

classmate

a younger cousin

your best friend

Can somebody please do this

Answers

Answer:

1. b. inventions

2. c. thinks

3. c. of

4. b. data

5.a. as fast

6. b. store

7. d. in

8. b.

9. a.

10. d.

11. b.

12. c.

it is a damage areas to go into deep water if you dash swim​

Answers

Answer:

?

Explanation:

are you asking if its harmful to go into a deep body of water and swim there? because i think the answer is yes

Which of the following quotes from Mark Twain has a serious tone?
-“The coldest winter I ever spent was a summer in San Francisco."
-"Age is an issue of mind over matter. If you don't mind, it doesn't matter."
-“Courage is resistance to fear, mastery of fear, not absence of fear."
-“Get your facts first, then you can distort them as you please."

Answers

Answer:

The quote from Mark Twain that has a serious tone is:

“Courage is resistance to fear, mastery of fear, not absence of fear."

Explanation:

“Courage is resistance to fear, mastery of fear, not absence of fear" is a serious quote. Twain is honestly explaining what he thinks of courage and fear, of their connection. His opinion is that being brave does not necessarily mean being fearless, but moving ahead in spite of fear.

However, when we take a look at the other quotes, we realize they were written in a humorous manner. Speaking of a summer as if it were winter, playing with the meanings of mind and matter, and advising someone to distort facts are all unexpected and funny topics, none of which can be taken seriously.

Answer:

-“Courage is resistance to fear, mastery of fear, not absence of fear."

this is the correct answer

Explanation:

40 Points What defines a Shakespearean play as a comedy? (Use the choices below)
It has a happy ending, often involving in a marriage.

The plot is universal, meaning anyone can relate to it.

It has five acts, with the third act having the highest point of tension.

The antagonist turns out to be "the good guy" say at the end.

Answers

Answer: It has a happy ending, often involving in a marriage.

Explanation:

Shakespeare's Comedies typically head towards marriage. Marriages is about happiness and also promise of regeneration.

In Shakespeare's Comedies, the couple's typically go through misunderstanding before achieving happiness. Shakespeare's Comedies possess elements such as:

• Mistaken Identity

• Reason versus Emotion

• Fate

• Idyllic settings

• Separation and Reconciliation

• Happy Endings.

Which of these is an example of a narrative?

a text that tells a story
a newspaper editorial
the directions for making a kite
an owner’s guide for a new camera

Answers

a text that tells a story
A—a text that tells a story

Which phrase from paragraph 4 best supports the answer to part A

Answers

Answer:

uh what there is nothing there bruv

Explanation:

a word used especially in literature or in technical context, meaning baby is...
a) kid
b) newborn baby
c) infant
d) toddler?​

Answers

Answer:

Kid is answer

Answer kid

Answer:

I think infant may be don't angry and follow me please

ILuminate online testing

Answers

Answer:

online testing is where you have to take test online instead of at school

Explanation:

Which person would be most threatened by silver carp in a local water source?A waterskier B A chicken farmer C A bungee jumper D A beachgoer

Answers

The person most likely threatened by silver carp in a local water source is; Choice A; A water skier.

What is a silver carp?

The silver carp by description is a filter feeding fish that can weigh up to 90 pounds and grow to about 50 inches in length. As the name implies, color is usually silver and can be greenish on their back. The silver carp is characterized by its ability to jump up to 10 feet out of the water upon the sight of a threat and hence, the person most likely threatened is a water skier.

The description of the silver carp above therefore leaves a waterskier as the most vulnerable to be threatened by a silver carp.

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I stayed up lats night
A.because I studied B.so I ordered pizza C. beside filipino D unless you want to E.whereas I am very shy

Answers

Answer:

D

Explanation:

Unless you want to. Because even if you have homework you can go to bed early. So in conclusion to, it's your choice.

At the end of this experience, how has Rainsford changed and become a DYNAMIC CHARACTER?

Answers

Answer:Rainsford is the dynamic character due the transformation from a cold-hearted hunter, who believes animals have no feelings, to the one who realizes the fear of being prey. His skills of past experiences help him overcome a terrifying and life-changing experience.

Explanation:

help me asap plz i need it

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Answer:B

Explanation:ndjfjrjdjrjrjrjdj

Can someone summarize this it’s really short thank you

Answers

All you need to do is take some of the key words and phrases, put them together in complete sentences, and then you have your summary.

Answer:

Explanation:

Take the key words and phares and put em together

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