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

Electromagnetic radiation with medium wavelengths is called

????

Answers

Answer:

visible light if is medium

If a hurricane was to hit Jacksonville during which Moon phase would
we most likely experience the most damage? Describe the factors that
are involved in order to develop an answer.

Answers

Answer:

I think it would be a "Waxing Crescent"

Explanation: I said this because this is the Moon phase that we see almost everyday; if I'm correct.                        

Let me know if it's right or wrong...

1. What is a predator and what is a prey? 2. How do they impact each other both positively and negatively, use clear details/examples to explain

Answers

Answer:

A predator is usually an animal who mostly eats and it's not eaten by other organisms. A prey is are organisms who are eaten by other animals.

Explanation:

Which of the following describes a chemical change? *
Clear liquids mix, producing a cloudy liquid and a yellow powder.
Silver coins are melted down and shaped into a solid brick.
Salt is added to a pot of hot water, and the water's boiling point changes.
O
An apple is chopped into eight slices.

Answers

Answer:the first option, clear liquids mix, producing a cloudy liquid and a yellow powder

hope this helps :)

Explanation:

Nucleic acids include

A. DNA and RNA

B. glucose and glycogen

C. chlorophyll and retinal

D. lipids and sugars

Answers

it would be A, dna & rna

Which describes sexual reproduction, and not asexual reproduction? a. produces offspring that are genetically identical with a single parent b. produces offspring that inherit half of their genetic information from each parent c. ensures all members of a population have equal fitness in their environment d. can occur very quickly, allowing a population to expand into new territory

Answers

Answer:

b

Explanation:

Classify each type of cell transport.

Answers

Answer:

Diffusion is a passive process of transport.

Endocytosis is a type of active transport

exocytosis are active transport processes.

osmosis a form or passive transport

Facilitated diffusion is a type of passive transport

Hope this helps!!!!

Classifying each type of cell transport :

Diffusion :    Passive transport Endocytosis :   Active transportExocytosis :     Active transportFacilitated diffusion :   Passive transport Osmosis :   Passive transport

A passive transport system is the movement of solute in solution across regions of different electrochemical potentials on either side of a cell membrane  ( i.e. from higher concentration to lower concentration) examples include : diffusion, osmosis and facilitated diffusion.  while

Active transport system is the movement of molecules across a cell membrane by the application of cellular energy and not the difference in electrochemical potential. examples include  Endocytosis and exocytosis

Hence we can conclude that Classifying each type of cell transport :Diffusion ; Passive transport.  Endocytosis :  Active transport. Exocytosis :  Active transport.  Facilitated diffusion : Passive transport. Osmosis :   Passive transport .

Learn more : https://brainly.com/question/14013340

Do cell walls manage the movement of all substances into and out of the cell?

Answers

No, the cell membrane regulates movement of materials into and out of cells.

Darwin's experiments are just one way to study phototropism. A student wants to investigate the effects of phototropism in bean plants. She places a light source directly above one plant, at a forty‐five degree angle to another, and at a ninety‐degree angle from the third.

What is her independent variable?

What is a hypothesis she might write for her experiment?

Answers

Answer:

Her independent variable is the light source and her hypothesis is what YOU think might happen

Answer:

The independent variable is what is being changed or altered in the experiment (light position), the dependant variable is what is altered or changed by the independent variable (plant).

Explanation:

Consider what is being changed in this experiment to investigate the effects? The plant itself is not changed by the experiment but the positioning of the light source is. That is your independent variable. The plant may change as a result of the independent variable but isn't being altered or changed as part of the method (dependent).

What is a hypothesis she might write?

Consider a hypothesis as a prediction. Researchers come up with their hypothesis based on the information they already know. So to write your hypothesis think about what you already know about phototropism. What do you think will happen to the plant in relation to the positioning of the lamp? Will the plant not move? Will it bend or move to face the lamp?

Hope this helps.

The type of water pollution that gets moved into a body of water coming from many unseen sources.

Non-point source pollution

Point source pollution

Answers

The answer is A non point source pollution please mark me brainliest

1. Which of the following weather
conditions support the development of
a hurricane?

Answers

Answer:

what are the options?

Explanation:

give me the options

What is Newtons second law of motion and what is the formula

Answers

Answer: Net Force and Mass

It's about the amount of force and mass of the acceleration on an object

Explanation:

The formula is a = Fnet/m

oxygen gas is made of molecules like the one this model shows, which chemical formula, most likely describes oxygen gas?

A.O100
B.OO
C.Og
D.O2

Answers

Answer:D

Explanation:

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

Pick your best idea and make a blueprint, detailed drawing, or you may describe it in a paragraph. (Sketch your blue prints here.) what does it mean by that please help me

Answers

Answer:

it gives u the answer

Explanation:

I'm sur you were asked a question or u needed to do a reading but it tells us right there, make a drawing or describe whatever it is in a paragraph

Which of the following is most likely an example of genetic drift resulting from the founder effect?

Answers

Answer:

An example of genetic drift resulting from the founder effect, of the available answers listed below, would most likely be a situation in which a population commonly expresses traits that are otherwise rare in the species. An example of this might be an animal with longer limbs than other members of the same species - there have been real-life examples of this studied with lizards.

Explanation:

Select all of the following that are a result of heating up a solution?
Molecules will move faster
Molecules will slow down
Molecular movement will not change
More collisions will occur between molecules

Answers

Answer:

a

Explanation:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.

The results of heating up a solution are:

Molecules will move faster

More collisions will occur between molecules

According to the kinetic molecular theory, when a solution is heated up:

The temperature of the solution risesThe attractive forces binding the molecules weakensThe speed of the molecules increases. This means that the molecules  move faster than before The rate of collision between the molecules increases. This is because of an increase in the Kinetic Energy possessed by the molecules as the temperature rises

Therefore, among the given options, the results of heating up a solution are:

Molecules will move faster

More collisions will occur between molecules

Learn more here: https://brainly.com/question/134712

In order from smallest to largest, the ecological levels of organization are
A: biome, ecosystem, community, population, individual

B:community, individual, population, ecosystem, biome

C: individual, population, ecosystem, community, biome

D: individual, populations, community, ecosystem, biome

Answers

Answer:

D: individual, populations, community, ecosystem, biome

In order from smallest to largest, the ecological levels of organization are individual, populations, community, ecosystem, biome. So, the correct option is (D).

What is an Ecosystem ?

Ecosystems are the complex living organisms and their physical environment and all their concerned correlation in a specific unit of space.

An ecosystem can be classified as

1.Abiotic constituents

It consists of minerals, climate, soil, water, sunlight, and all other non living materials.

2. Biotic constituents

It includes all its living organisms.

By combining these constituents together generates two important forces:

The flow of energy from the ecosystem The galloping of nutrients within the ecosystem.

Ecosystems have varied sizes like some are tiny enough to be encompassed within single water droplets while others are big enough to embody entire topography and regions.

Organic matter engendered by autotrophs directly or indirectly bolster heterotrophic organisms. Heterotrophs are the consumers of the ecosystem which cannot make their own food. They utilize, reorganize, and finally decompose the complex organic substance made up from autotrophs.

Thus, in order from smallest to largest, the ecological levels of organization are individual, populations, community, ecosystem, biome. So, the correct option is (D).

Learn more about Ecosystem, here:

https://brainly.com/question/13979184

#SPJ2

someone answer these 2 for me

Answers

Answer:

F=dominant, 6 fingers

f= reccessive, 5 fingers

Ff= 6 fingers( contains dominant gene)

if you combine Ff and Ff you get:

25% FF (6 fingers)

50% Ff (6 fingers)

25% ff ((5 fingers)

so only 25% will have 5 fingers (normal)

Answer2:

Dominant=normal hearing

Recessive= deafness

If one parent is RR and the other Rr, the offspring will be:

50% RR

50% Rr

so all the offspring will have normal hearing, and there is 0% of deafness.

Hope it helps!!

how are population sizes kept?

Answers

Population size is kept according to the carrying capacity of the land.

Which statement best defines a protist? an organism that reproduces by spores and feeds on decaying matter a eukaryote that is either animal-like, plant-like, or fungus-like a foot-like extension that is used for eating and movement a long, whip-like extension that is used for movement

Answers

Answer:

B. A eukaryotic that is either animal-like, plant-like, or fungus-like.

Explanation:

A protist is best defined as an eukaryote that is either animal-like, plant-like, or fungus-like.

WHAT IS A PROTIST?

A protist is an eukaryotic i.e. possess a membrane-bound nucleus organism that belongs to the kingdom Protista.

The kingdom Protista is different from all other kingdoms such as;

FungiAnimaliaPlantae

This means that an organism classified as a protist can be defined as an eukaryote that is either animal-like, plant-like, or fungus-like.

Learn more about protist at: https://brainly.com/question/5186929

All plants are unicellular organisms

Answers

Answer:

All true plants are regarded as multicellular organisms since they consist of more than a single cell.

Answer:

False

Explanation:


What is apical meristematic tissue? And its function

Answers

Answer:

Apical meristematic tissue and its function the apical meristem, also known as the “growing tip,” is an undifferentiated meristematic tissue found in the buds and growing tips of roots in plants. Its main function is to trigger the growth of new cells in young seedlings at the tips of roots and shoots and forming buds.

I hope my answer will help you,God blessed you

Who am I? I have a tail. I eat other animals. I have no hair on my body.

Answers

Answer:

A snake?

Explanation:

Answer:

A Lizard?

Explanation:

It has a tail, has no hair on the body and eats other animals.

Explain in simple molecular terms what would have to be done to a plant oil to transform it to a trans fat?

Answers

Carbohydrates are used before fats for energy because carbohydrates are easier to break down. Unsaturated fatty oils can be transformed into a trans fat by adding hydrogen atoms. This is called hydrogenation.

which will most likely result in a negative growth rate in the human population of a country

Answers

Answer:

The death rate is higher than the birth rate. The birth rate is higher than the death rate.

Explanation:

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.

What do polymers do

Answers

Explanation:

Organic polymers play a crucial role in living things ,providing basic structural materials and particpiating in vital life process.for example,the solid parts of all plant are ,made up of polymers

How do biotechnologists help with modern mining methods?
A)
They evaluate the microbes contained in minerals to determine the grade of the ore.
B)
They devise methods to kill the microbes in minerals to make the ore more profitable.
C)
They look for ways to genetically engineer microbes to aid in obtaining specific minerals.
D)
They propose ways to genetically engineer microbes to reduce gases created by mining.

Answers

Answer:

C

Explanation:

Microbial mining is when you use microbes to help you obtain specific minerals. Biotechnologists help with this.

The most prevalent environmental threat to human populations caused by landfills is the contamination of surface and ground water. So, most modern landfills in the U.S. are designed to protect against hazardous chemicals escaping into the surrounding soil. What technology makes these protection systems possible?

Answers

Answer: plastics technology

Explanation:

Other Questions
Can you find the solution I will give you brainliest Changes to the global climate could include _______.a.changes to temperatureb.changes to pressurec.changes to precipitationd.all of the abovePlease select the best answer from the choices providedABCD Damien is in his car testing out his new sound system. He slowly turns up the volume from zero, to one, to two, etc. He only begins hearing the music once the volume reaches level four. The moment Damien hears his music it reaches his: Campo semnticoSepara este grupo de palabras en cuatro (4) campossemnticos. Una vez que estn divididos subraya la palabraque da nombre al campo semnticoperiodismo, red, guila, reportaje, pediatra,anzuelo, colibr, pesca, azor, artculo, quirfano,alrgico, aves, caa de pescar, barco, noticia, faro,oftalmlogo, entrevista, gorrin, canario, medicinaPeriodismo; articulo Ava read an article claiming that 10% of people in her county were senior citizens, and she wondered if this held true for residents in her city. She took a random sample of 225 people from her city to test H0 : p = 0.10, where p is the proportion of people in her city that are senior citizens. Ava found that approximately 14% of those sampled were senior citizens. She conducted an appropriate significance test, and the resulting test statistic was z 1.89z. Assume that the conditions for inference were met. ANSWER FOR BRAINLIESTWrite a sentence or two for the following content.fact and opinion 4x - 12 +7x4 is a(n) ___________________x is a(n) ___________________12 is a(n) __________________How many terms are in the above expression? Each ___ real number has no real square root. What is the answer on the line? Use el verbo entre parntesis para pedirle a su compaero/a de cuarto que haga las cosas indicadas. 1. Ven (Venir) a mirar este programa. 2. No apagues (apagar ) la computadora; necesito trabajar ms tarde. 3. (Llamar) al portero y (decirle) que la luz se apag. 4. No (poner) la televisin ahora: (ponerla) despus. 5. NO (preocuparse ) por el trabajo; (descansar) un poco. Why were trail cattle branded? Solve.x^2 + 4 = 0. Simplify:5j2+ 8+5+ 10j+3j2 Simplify the expression given below x^2 + x-2 Neither is pleasant or neither are pleasant Present TenseCorrect version on the verb What is the Gospel Carlyle speaks of?A. workB. the selfC. the BibleD. songE. honor is a granite a mineral or a rock What is a triglyceride? (Site 2) What is Piccolo?A. SaiyanB. cyborgC. NamekianD. Dermotologist