Why does a siren have a lower pitch as it moves away from you? (hurry need answer quick and fast)

A.Diffraction causes the sound waves to bend.

B.Constructive interference causes the amplitude to decrease.

C.Wavelength increases at a very fast rate.

D.The Doppler effect causes a lower perceived pitch.

Answers

Answer 1

Answer:

D) the doppler effect

Explanation:

the sound waves are more spread out as it moves away resulting in a lower pitch

Answer 2
D.the Doppler effect causes a lower perceived pitch

Related Questions

How long does it take a jumbo jet to travel a distance of 2400 miles if they are traveling at an average speed of 400 miles/hr?

Answers

Answer:

6 Hours

Explanation:

Please help please help please help please help please help please help please help please help please help please help please help please help please help please help

Answers

Answer:

It allows the cell to regulate the movement of materials into and out of the cell

Explanation:

This molecule is a saturated fatty acid. The cell membrane is made up of a phosphate head and three fatty acid tails that form a lipid bilayer arrangement.

This lipid bilayer regulates the entry and exit of substances into and out of the cell. Small non-polar molecules, like oxygen and carbon dioxide, are soluble in the lipid bilayer and can easily cross the plasma membrane. Small uncharged polar molecules, like water, can pass through the membrane by osmosis. Larger molecules such as glucose, or charged molecules like ions, require active transport to be passed across the cell membrane.  

Answer:

It allows the cell to regulate the movement of materials into and out of the cell

Explanation:

Which describes a way that water cycles through organisms? O A. Waves collide onto a beach. B. A plant is eaten by an animal. C. Rain falls from clouds. O D. A rock breaks in a rainstorm.​

Answers

Answer:

B.) A plant is eaten by an animal.

Which macromolecules provides quick energy breakdown?

Answers

Answer:

carbohydrates provide quick energy

True or false A theory will never be a law and a llaw will never be a theory

Answers

the answer is true.

Fill in the blanks

For photosynthesis to take place, an organism needs the reactants ______ and ______ as well as access to sunlight. The stomata in a leaf allovis in the reactant _______. The reaction takes place in the organelle _______.​

Answers

Answer:

water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.

Explanation:

Select the correct answer for the blanks.
What are the differences encountered in the photosynthetic-respiratory pathway of the carbon cycle, as it exists on land and in the ocean?

In a marine environment, the role of plants is performed by _______(phytoplankton, zooplankton, microorganisms) and an additional flux of carbon into the oceans is through _______(aeration, diffusion, deposition).

Answers

Answer:

phytoplankton; diffusion

Explanation:

"Phytoplankton" takes the role of the plant in the marine environment because it consists of tiny plants that contain chlorophyll–just like the terrestrial plants. This provides food to many aquatic animals in the ocean.

When it comes to carbon cycle, carbon dioxide from the atmosphere is being diffused into the ocean by dissolving it. The carbon in the ocean turns into an organic matter through the process of photosynthesis. The ocean is said to have more carbon compared to the atmosphere because many marine animals use it for survival.

The origin of a muscle is generally:
ОА.
The stable and proximal attachment.
B. The stable and distal attachment.
O C.
The moveable and distal attachment.
D.
The moveable and proximal attachment.

Answers

D. the moveable and proximal attachment
D is correct for your answer it’s right

What is the diffrence between type 2 and type 1 diabietes

Answers

Answer:

People with type 1 diabetes don't produce insulin. You can think of it as not having a key. People with type 2 diabetes don't respond to insulin as well as they should and later in the disease often don't make enough insulin. You can think of this as having a broken key.

PLZ ANSWER FIRST PERSON TO ANSWER GETS BRAINLIST ​

Answers

There’s 35% glucose in the picture.

1) Explain what a covalent bond is.

Answers

Answer:

its a chemical link between two atoms or ions in where the electron pairs are shared between them :)

Explanation:

Fungus is an organism not drawn in the above food chain although it has a very important role. Describe an important role of organisms such as fungi and bacteria can you help me plz!!!

Answers

Answer:

Explanation:

Fungi and bacteria are decomposers. This means they help breakdown dead plant and animal matter.

This is kind of a baseline descripiton but i hope it helps!

Two of the most crucial creatures in an ecosystem are fungi and bacteria. They are essential for the nutrition cycle, the breakdown of organic matter, and the generation of food for other species. In order for other creatures to exploit the complex organic compounds, fungi and bacteria convert them into simpler forms.

What  is the way to the food chain ?

For instance, when dead plants and animals are broken down by fungi and bacteria, vital nutrients like nitrogen, phosphorous, and sulphur are released into the soil. Following the uptake of these nutrients by plants, food is produced that is then devoured by other species in the food chain.

Additionally, bacteria and fungi collaborate with other living things like plants in symbiotic interactions. For instance, several fungi collaborate with plant roots to provide the providing the plant with nutrients it needs in exchange for carbs.

Mycorrhizal symbiosis is the name for this kind of partnership, which is necessary for the development and well-being of plants. Since many bacteria and fungi produce chemicals that can stop the formation of dangerous infections, they also play a significant part in disease prevention.

Finally, fungus and bacteria are significant food sources for many organisms. For example, fungi like mushrooms and others feed animals like deer, birds, and other fauna.  

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The diagram shows the alignment of the sun, the moon, and Earth.

13. Which best explains why low tides are happening at locations 2 and 4?



Group of answer choices

A. Earth’s gravitational pull on the sun

B. the moon’s gravitational pull on Earth

C. Earth’s gravitational pull on the moon

D. the moon’s gravitational pull on the sun

Answers

Answer:

I think the answer is c sorry if I'm wrong :(


What are three functions all cells perform

Answers

Answer: Energy Generation

Molecular Transport

Reproduction

Explanation:

Energy Generation-Living cells exist in a perpetually active biological state. ...

Molecular Transport - Each cell is surrounded by a membrane that delineates its boundaries and acts as a gatekeeper, controlling the movement of molecules into and out of the cell. ...

Reproduction-Living cells exist in a perpetually active biological state. All cells require energy to conduct the activities necessary to stay alive

PLEASE PUT IN YOUR OWN WORDS

write a short story about a time u had to use gravity to accomplish something.

Answers

Answer:

Explanation: so there are a bunch of ways I could go with the story

I could either talk about jump ropeing or jumping on a trampoline or even throwing a ball into the air. when your playing and you trow a ball in the air. You are gonna want it to come down. So thats how you use gravity to accomplish something

Which of the following is not a Polymer? *
a) protein
b) starch
c) nucleotide
d) lipid
e) DNA

Answers

DNA I had this before I’m sure it’s dna

pls help will mark brainliest.
Answer Q1-7 using the food web pictured below.
1. How many food chains make up the food web?



2. Which organism is an herbivore?



3. Which organism is an autotroph?



4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?



5. Which organism is an omnivore?



6. Which organisms belong to more than one food chain?



7. Which organism belongs to more than one trophic level?

Answers

Answer:

1) 3

2) Insect

3) Plant

4) Snake; 3rd

5) bird

6) All of them

7) bird

Explanation:

Answer number 12please

Answers

Answer:

A. Ingestion ->Digestion ->Egestion

answer is A since ingestion is eating or putting the food in your mouth and digestion means going in your stomach

A scientific theory states that something will happen. _______________
True or FALSe ?

Answers

Answer:

False

Explanation:

It state how or why something will happen.

termites are insects that feed on wood, which contains cellucose. scientist have observed that some termite species prefer wood that has been attacked by fungi. Construct an explanation for this observation

Answers

Answer:

In this observation, the termites and the fungi rely on each other in order for survival. In other words, they have a symbiotic relationship. This type of fungi helps the termites by digesting cellulose from the wood since termites are unable to digest it. In turn, the termites provide the fungi an environment where they can be cultivated. This explains why termites prefer a wood that was inhabited by fungi.

RESULT

In this observation, the termites and the fungi rely on each other in order for survival. In other words, they have a symbiotic relationship. This type of fungi helps the termites by digesting cellulose from the wood since termites are unable to digest it. In turn, the termites provide the fungi an environment where they can be cultivated. This explains why termites prefer a wood that was inhabited by fungi.

Explanation:

Hope this helps

Crown me as brainliest:)

Which six elements provide most of the mass of the human body? 0 C, N, P S, H, 0 0 C, Mg, P, H, O, N O Mn, Na ), H, Ca, o O Ur, N, P, N, O, C​

Answers

Answer:

H, He. 2, Li, Be, B, C, N, O, F, Ne. 3, Na, Mg, Al, Si, P, S, Cl, Ar. 4, K, Ca, Sc, Ti ... 7, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, Lr ... (Atomic mass is also referred to as atomic weight, but the term "mass" is more ... One molecule of water (H2O) would weigh 18.02 amu (2×1.00797 amu for H + ... 6, C, Carbon, 12.011.

Explanation:

which would a scientist most likely examine to locate gene mutations?

Answers

Answer:

Single base pair mutations can be identified by any of the following methods: Direct sequencing, which involves identifying each individual base pair, in sequence, and comparing the sequence to that of the normal gene.

DNA is the molecule which is most likely to be examined to locate gene mutations. Thus, the correct option is A.

What are Gene mutations?

Genetic mutations are the changes to the DNA sequence which happen during the process of cellular division when the cells make copies of the DNA molecules. The DNA molecule tells body how to form and function well.

Genetic mutations are the changes which could lead to genetic conditions such as cancer, or they could help the humans to better adapt to their environmental conditions over a period of time.

Mutations can be of many different types, such as substitution, deletion, insertion, and translocation of the genetic sequence.

Therefore, the correct option is A.

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Kayla summarizes the cell theory to her class. She states that all organisms are made up of one or more cells. Which pair of statements correctly completes her summary?
A. All cells are the same size, and the cell is the basic unit of all organisms.
B. All cells come from existing cells, and all cells have the same parts.
C. The cell is the basic unit of all organisms, and all cells come from existing cells.
D. The cell is the basic unit of all organisms, and all cells have the same parts.

Answers

Answer:

C

Explanation:

Cells are a basic unit of life and that without cells you don't exist as a living being.  Also, all the other answers have a flaw in them like in question A... not all cells are the same size. For question B and D... not all cells have the same, parts or organelles since for plants they have chloroplast while animals don't. Eukaryotes have membran- bound organelles and a nucleus while... a Prokaryote doesn't etc...

Cells that actively produce proteins will contain large numbers of?

Answers

Answer:

Mitochondria

Explanation:

Because mitochondria is the power house of the cell, hence it  provides energy.

Jill is preparing to cook a family dinner, and she begins by gathering ingredients for the
main course and dessert. She realizes that most ingredients go through both physical
and chemical changes as they cook.
One of the ingredients for her main course undergoes physical changes. Which of the
following is a physical change?
boiling water
cooking eggs
O grilling hamburgers
O baking bread

Answers

Answer:

Boiling water

Explanation:

Boiling water is an example of physical change as it does not cause any change in the chemical composition of water.

What are physical changes?

Physical changes are defined as changes which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components but cannot be used to separate compounds to simpler compounds.

Physical changes are always reversible using physical means and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys are all reversible and hence physical changes.

They involve only rearrangement of atoms and are often characterized to be changes which are reversible.

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..).73!:8373&2?38!38:!38/‘z idje eusb

Answers

Answer:

Alright. I think I understand. Here's what you need:

PACIFIC,   PACIFIST ,   PACIFY ,   PAIN-FREE,   PAINLESS,   PAINLESSLY,   PAL ,   PALATABLE,   PALATE,   PALATIAL,   PALLY,   PALPABLE,   PAMPER,   PAMPERED,   PAMPEREDLY,   PAMPEREDNESS,   PAMPERS,   PANORAMIC,   PAR EXCELLENCE,   PARADIGM,   PARADISE,   PARADISIAC,   PARADISIACAL,   PARAGON ,   PARAMOUNT ,   PARD ,   PARDON,   PARENT,   PARENTAL,   PARENTALLY ,   PARNASSIAN,   PARTICIPANT,   PARTICIPATION,   PARTICIPATIVE,   PARTICULAR ,   PARTICULARLY ,   PARTISAN ,   PARTNER ,   PASSION,   PASSIONATE,   PASSIONATELY,   PASSIVE,   PATERNAL,   PATERNALLY ,   PATHFINDER,   PATIENCE,   PATIENT ,   PATIENTLY,   PATRIARCH,   PATRIOT,   PATRIOTIC,   PATRON,   PEACE ,   PEACE OF MIND,   PEACEABLE,   PEACEABLY ,   PEACEFUL,   PEACEFUL WORDS,   PEACEFULLY,   PEACEKEEPER ,   PEACEKEEPERS,   PEACH,   PEACHY,   PEAK ,   PEARL,   PEER ,   PEERLESS,   PENETRATING,   PEP ,   PEPPED,   PEPPINESS,   PEPPING,   PEPPY,   PEPS,   PER MALICIOUS,   PERCEPTIVE,   PERCEPTIVELY ,   PERCEPTIVENESS,   PERFECT,   PERFECT COMBINATION,   PERFECTION ,   PERFECTIONIST,   PERFECTLY ,   PERFORMER,   PERKINESS,   PERKY,   PERMALICIOUS,   PERMANENT,   PERMISSIBLE,   PERMISSIVE,   PERMISSIVELY,   PERSEVERANCE,   PERSEVERANT,   PERSEVERE ,   PERSEVERING,   PERSEVERINGLY ,   PERSISTENCE,   PERSISTENT,   PERSISTENTLY ,   PERSONABLE,   PERSONAGES,   PERSONAL GROWTH,   PERSONAL-GROWTH,   PERSONALITY ,   PERSONALIZED,   PERSONALLY ,   PERSPECTIVE ,   PERSPICACIOUS,   PERSPICACIOUSLY,   PERSPICUOUS,   PERSPICUOUSLY ,   PERSUASIVE,   PERSUASIVELY,   PERT,   PERTINENT,   PERTLY ,   PET ,   PETITE,   PETRICHOR,   PHENOMENAL,

Explanation:

Hope I've helped! :)

What happened to the greenish warbler birds as they migrated from the southern portion of their range up around the Tibetan Plateau? a. They evolved separately as they moved north and became two separate species. b. The original species died off, but the ones that were able to adapt to a northern climate evolved into a new species. c. As a whole the species was able to adapt to a colder climate, but no significant changes occurred. d. They were unable to adapt and evolve to ensure their survival and became extinct. Please select the best answer from the choices provided A B C D

Answers

Answer:

The correct answer is - option A. They evolved separately as they moved north and became two separate species

Explanation:

Greenish warbler is a leaf warbler present in many regions in the world and shows migration in winters in the Indian region. The main region of the migration is Tibetan Plateau.

They migrated from the southern part of these birds range and moved north and evolved separately from the main species and become two distinct species due to their geolocation and environment change.

Answer:

option A

Explanation:

EDGE2020

Which statement correctly describes the offspring of asexual reproduction?
Choose 1 answer:
They result without the fusion of gametes.

(Choice B)
B
They vary genetically from the parent.

(Choice C)
C
They contain half of the genetic information of the parent.

(Choice D)
D
They develop very slowly compared to offspring of sexual reproduction.

Answers

Answer: the answer is A “They result without the fusion of gametes”

Explanation:

The statement that correctly describes the offsprings of asexual reproduction is: they result without the fusion of gametes.

ASEXUAL REPRODUCTION:Asexual reproduction is a type of reproduction that involves a single parent organism. The single parent cell gives rise to two new daughter cells by undergoing division.

As a result, the new organisms are genetically identical to one another, hence, genetic diversity is not ensured.

On the other hand, sexual reproduction involves the fusion of gametes to produce genetically different organisms.

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Which of the following is not an example of mechanical control of nonnative species?
a.
pulling
b.
inspections
c.
net barriers
d.
mowing

Answers

Answer:

it's A

Explanation:

Answer:

A. PULLING

Explanation:

Edg 2020

Water molecules are polar, which give water its unique properties. One important property is water is the universal ________

A. Solvent

B. Drink

C. Liquid

D. Solute

Answers

Answer:

A. solvent

Explanation:

Its called the universal solvent because its capable of dissolving more substances than any other liquid.

Other Questions
his capital the to the former Byzantine city and renamed it 16Mehmed's first concerns were restoring the city's defenses and repopulation. He ordered therepair of the gates and walls, the construction of a fortress within the city, and the building of a palace.To repopulate the city, he encouraged traders to return to their homes, promising money andprotection. Mehmed also demanded that Muslims, Christians, and Jews from across the empire resettlein Constantinople. He allowed his subjects religious freedom as long as they 17him.Additionally, Mehmed created a central government, with loyal officials. Like the Byzantineemperor Justinian, Mehmed also arranged criminal law and the law for his subjects into a single code. Inthe twenty-five years after the fall of Constantinople, Mehmed undertook a number of militarycampaigns in the Balkans, modern-day Romania, Hungary, Anatolia, the island of Rhodes, the CrimeanPeninsula, and southern Italy. 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President Trump would need to sign the bill he preferred; the original House bill, or the compromise Senate bill.B. Nothing; Senate bills take precedence over House bills, so the Senate bill would go to the President.C. The Senate bill would have to go back to the House, and the House would have to vote again to accept the Senates changes.D. The Supreme Court would need to intervene to determine which changes are constitutional and which are not. I am really stuck on this can anyone help? An economic system that permits the conduct of business with minimal government intervention A. free enterprise B. Continuum C. incentive D. safety net E. collective F. socialism G. transition H. private property What were two reasons to be a loyalists Select the correct answer.Which statement is true about the slope of the graphed line? Complete the long division problem on your own sheet of paper. Be sure to show all steps to show your teacher. Then enter the answer in the essay box.16 divided by 13 Wann fahren Sie in den Urlaub? 2The units of the floor plan at the right are in feet. Find theperimeter and area of each room.a. the kitchenKitchenBedroomb. the bedroomc. the bathroom20 ftMainhallwayd. the closetClosetBathroome. What is the area of the main hallway? Explain howyou could find this area using the area of each room20 ft I would like some help on this please. As part of a carnival game, a 5.00 kg target is freely hanging from a very long and very light wire. Contestants can use one of two 1.5 kg balls to try to hit the target and deflect it high enough to win a prize. Ball A will have an elastic collision and bounce back toward you while ball B will have a nearly perfectly inelastic collision, but rather than sticking to the target, the ball will just drop straight downward to the ground after the collision. You can throw each ball with a velocity of 12 m/s. 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Selecciona las frases ciertas La Ciudad PerdidaChoices:fue redescubierta en 1972 por residentes locales buscan tesorosse estima que la cuidad fue construida alrededor del ao 800 A.D. hay que viajar a pie por sies das o tomar un helicptero para llegar allrecibe su nombre gracias a una cuidad de Espaa