How does the strength of a sound field 1 meter from its source compare with its strength 4 meters away?

Answers

Answer 1
Intensity is defined to be the power per unit area carried by a wave. Power is the rate at which energy is transferred by the wave. In equation form, intensity I is
I
=
P
A
I
=
P
A
, where P is the power through an area A. The SI unit for I is W/m2. The intensity of a sound wave is related to its amplitude squared by the following relationship:

I
=
(
Δ
p
)
2
2
ρ
v
w

Related Questions

colourful leaf of a flower is called?

Answers

Answer:

Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. ... Petals are usually accompanied by another set of modified leaves called sepals, that collectively form the calyx and lie just beneath the corolla.

Explanation:

Which of the following is a consumer? *
1 point
Seed
Grass
Insect
Fruit
HELP ME PLESE NEED IT BY TODAY WILL GIVE U 10PIONTS HELPPPPPPPPPPPP

Answers

insect is a consumer im pretty sure

Insect is the answer.

.. .. ..

Which of the following are seaweed adaptations that allow it to survive? (Choose all
that apply).
holdfasts to hold onto rocks
air-filled sacs on fronds for floating
cilia for movement in water
slime coating to prevent drying out
fronts that allow them to bend with the waves

Answers

Answer:

air-filled sacs on fronds for floating. cilia for movement in water. slime coating to prevent drying out. fronts that allow them to bend with the waves

Explanation:

i took the test

Seaweed Adaptations that allow seaweeds to survive are :

Air-filled sacs on fronds for floating ( B )Cilia for movement in water ( C ) Slime coating to prevent drying out  ( D )Fronts that allow them to bend with the waves ( E )

What are seaweeds

Seaweeds are weeds/algaes inhabiting marine ecosystems, such as seas and oceans, they have certain adaptations that help them survive in water. They are anchored to the bottom of seas or rocks under water.

Seaweeds have several adaptations that help them survive under water and some these adaptations are as mentioned above.

Hence we can conclude that Seaweed Adaptations that allow seaweeds to survive are :

Air-filled sacs on fronds for floating ( B )Cilia for movement in water ( C ) Slime coating to prevent drying out  ( D )Fronts that allow them to bend with the waves ( E )

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Describe the flow of a river from beginning to the end


Use the following terms: headwaters, springs, tributaries, confluence, and mouth

Answers

The flow of a river from the beginning is called the headwater, as its where the water is coming from. Springs are warmer water spots in a big or little space of water. Confluence is when two rivers connect into one. Tributaries are caused when rivers flow out into a larger river or lake. The mouth of the river flows from a larger source into a smaller one, commonly a stream or river.

The flow of river begins with the Headwater .

Springs are warmer water bodies compared to rivers,

The rivers connect to another river to form a  confluence  

Rivers flow into larger water bodies in the form of tributaries.

The mouth of the river flows from a larger source to a smaller body of water.

Describing the flow of a river

The flow of river begins with the Headwater ( the beginning of the river ), springs are warmer water bodies compared to rivers, When the rivers flow they connect to another river ( confluence ) which flow into larger rivers in the form of tributaries while the mouth of the river flows form a larger source to a smaller body of water.

Hence we can conclude that the flow of river is as described above

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The genetic researchers at Bay Medical Company are interested in spiders with the trait for medium silk flexibility. They
think this sik can be used for medical purposes such as for making stitches and for creating artificial tendons. Why do
you think offspring B has the medium silk flexibility trait?

Answers

Answer:

Due to similar shape.

Explanation:

I think offspring B has the medium silk flexibility trait because this offspring B is identical to the spider that is responsible for medium silk flexibility trait. There are some offspring identical to male parent spider due to the presence of dominant allele whereas very littles number of offspring is similar in appearance with the female spider due to recessive allele. If the male spider has medium silk flexibility trait so more number of offspring has medium silk flexibility trait as compared to others.

The people at the Medical research bay company are researching on spiders. the trait for the medium silk flexibility. The silk can be used for medical purposes and creating other tendons.

The B offspring has the medium flexibility trait it's identical to the spider that is responsible for the medium silk flexibility trait.  There are some offspring identical to male parent spider due to the presence of dominant allele spider due to recessive allele.

Learn more about the medical Company are interested in spiders.  

brainly.com/question/16207848.

Which of the following types of power does not use a turbine to generate
electricity?
O A. Wind
B. Nuclear
C. Coal
O D. Solar

Answers

D. Solar

Explanation:

Solar converts sunlight directly into electricity without the need of a turbine

Solar does not use a turbine to generate electricity. Therefore, option (D) is correct.

What is Solar power?


Solar power is a renewable and sustainable energy source that generates electricity by harnessing the energy from the sun. It is a clean energy alternative to fossil fuels, as it does not produce harmful emissions or pollutants that contribute to climate change.

Solar power systems use photovoltaic (PV) cells, which convert sunlight into direct current (DC) electricity. An inverter then converts the DC electricity into alternating current (AC) electricity that can be used in homes and businesses.

Solar power is becoming more affordable and accessible, and many governments around the world offer incentives to encourage the installation of solar panels. The growth of solar power has the potential to reduce greenhouse gas emissions, create jobs, and provide energy access to remote communities.

Learn more about solar power, here:

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You would expect a cell with extensive Golgi apparatus to

Answers

Answer:

secrete a lot of material.

Importance of photosynthesis to humans

Answers

Answer:

Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. The importance of photosynthesis in our life is the oxygen it produces. Without photosynthesis there would be little to no oxygen on the planet.

Bonus: we eat plants

Hope this helps!

Please help me answer these two questions. Thanks

Answers

Answer:

2nd Answer: Animal would not be able to dive as long

The seal

Explanation:

Please give me BRAINLIEST and THANKS lol <( ̄︶ ̄)>

What is the genetic make-up of an organism?

Answers

Answer:

Explanation:

In a broad sense,genetic makeup of an organism can be regarded as the

"genotype" . It gives description about

complete set of genes an organism.

If we narrow it, it can be reffered to as "alleles" , this is is variant forms of a gene which is been carried by an organism. For instance, Humans can be regarded as diploid organisms, i.e there are two alleles at their each genetic position along with one allele which is been inherited from each parent. genotype of a specific gene is been represented by "Each pair of alleles". Instance of this is of "sweet pea plants" the gene responsible for flowering color posses two alleles, One of the alleles is responsible for coding purple flowers, symbolized with

uppercase letter F, the other allele is responsible for coding of white flowers

symbolized with Lowercase letter" f "

There are three possible genotypes which could be featured for Different population of a sweet pea, which are

✓FF

✓Ff

✓ ff.

Genotype of each plant have some contribution to the phenotype, by saying this, we mean outward appearance of its flowers.

what is the term for an organisms ability to maintain constant internal conditions even when environmental conditions change?

Answers

Answer:

Homeostasis refers to stability, balance, or equilibrium within a cell or the body. It is an organism's ability to keep a constant internal environment.

Explanation:

Keeping a stable internal environment requires constant adjustments as conditions change inside and outside the cell

Answer:

Homeostasis refers to stability, balance, or equilibrium within a cell or the body. It is an organism's ability to keep a constant internal environment. Homeostasis is an important characteristic of living things. ... The adjusting of systems within a cell is called homeostatic regulation.

Transplration is the process by which _______.

plants add water to the atmosphere
animals break down food into energy
plants break down food into energy
plants make food. Please answer fast

Answers

Answer:

plants add water to the atmosphere

Explanation:

transpiration is the loss of water from the plants in the form of water vapors ... so that way...

Answer:

Plants add water to the atmosphere

Explanation:

Water is given out as vapour into the air

Which statement describes the best evidence that two species share a recent common ancestor?
A) The species are about the same size.
B) The species eat the same type of food.
C) The species live in the same ecosystem.
D) The species have similar DNA sequences.

Answers

Answer:

I hope this helps you :)

Explanation:

Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used to determine species' relatedness.

The statement that describes the best evidence that two species share a recent common ancestor is that the species have similar DNA sequences, which is present in Option D, as the DNA is the genetic material.

What role does the DNA sequence play in evolution?

DNA sequence comparisons have become an increasingly important tool in determining evolutionary relationships between organisms, and after comparing the DNA sequences of different organisms, scientists can determine the degree of similarity between them such as similarities in size, diet, or ecosystem may indicate some degree of similarity between two species, but they do not necessarily provide evidence for a recent common ancestor.

Hence, the statement that describes the best evidence that two species share a recent common ancestor is that the species have similar DNA sequences, which is present in Option D.

Learn more about the DNA sequence in evolution here.

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Help plsssss asapppppppp




1.What we call the maintenances of constant internal environment of organisms? __________________________


2. Animals which control their body temperature at constant state regardless the changes of external temperature are known as ______________


3. What is the organ in our body which is used as an excretory organ and also used as an organ of osmoregulation?
________________


4. What is the part of the kidney from which urine is taken through the ureter?
_____________________


5. The structural and functional units of the kidney is _______________________.

Answers

Answer:

1. homeostasis.

2.Endotherm (warm-blooded animals).

3.kidneys

4.renal pelvis

5.nephron.

Which structures are least likely to appear in the same eukaryotic cell?
A. mitochondria and chloroplasts
B. ribosomes and mitochondria
C. a cell wall and chloroplasts
D. small vacuoles and a cell wall

Answers

Answer:

D. small vacuoles and a cell wall

Explanation:

Small vacuoles are found in animals, while cell walls are found in plant cells. Although plant and animal cells are both eukaryotic, the question asks if they would appear in the same cell which they would not.

Plz help me well mark brainliest if you are correct!

Answers

i think it’s a because that’s the easy question every

Answer:

Its A. satellite :)

Explanation:

When plants that are true breeding for different traits of a
characteristic are crossed, the trait observed in the first generation
is called the
a. dominant trait.
b. recessive trait.
c first-generation trait.
d. second-generation trait.

Answers

Dominant trait if I’m remembering correctly!

This category of endangerment has so few individual survivors that the species could soon become extinct:

A. Invasive species
B. Threatened species
C. Endangered species
D. Endemic species
E. Red list species

Answers

Answer:

Endangered Species

Explanation:

C. Endangered species

[8 points]
April is a new photographer excited about her first time out on assignment. She is accompanying a wildlife photographer on a trip to capture the cute puffins found on the barrier Islands off the coast of Ireland. April tells her new boss that she would love to catch a photo of one of the puffins on a nest with a chick. April's boss smiles but tells her that she will have to take what she can get. Which sentence describes the challenge that April will MOST LIKELY face?

A. Wild animals are not easy to photograph.
B. wild animals move around constantly.
c. Wild animals won't like being positioned.
D. wild animals are not easy to find.​

Answers

Answer:

B

Explanation:

Most wild animals don't like to stay confined in one place, they like to move, you know how when they get captured they move around in their cage a lot.

the process by which the characteristics of a species change over many generations in response to the environment
variation
variation

adaptation
adaptation

natural selection
natural selection

Evolution

Answers

The answer is Adaptation

help me with this asap please.

Answers

Answer:

middle boxes are bases matching with eachother like A with T

SOMEONE HELP ME WITH THIS QUESTION

Answers

Answer:

rrkufhjgfyrugf5td89yed/learningnice.com/ffiuvfk/answer

Explanation: there:)

Hypernatremia is a condition where there is too much salt in the blood. How does the body maintain homeostasis if salt levels are too high?

Select one:

The pancreas increases its generation of insulin.

The liver produces more of the hormone glucagon.

The brain receives a signal to decrease blood volume.

The brain sends a signal to decrease urine output.

thanks for the help!

Answers

Answer:

The answer is D.

Explanation:

This makes the most sense as it reduces water loss from the body.


Scientists once classified fungi as types of plants. Today, fungi are classified in their own kingdom. Which of these
traits distinguishes fungi from plants?
A Fungi have cell walls made of chitin and are heterotrophic.
B Fungi grow in the ground and are photosynthetic.
С Fungi reproduce by asexual reproduction.
D Fungi are prokaryotes.

Answers

Answer:

D is the answer hope it helps

Forests provide which of the following?
1. Fuel
II. Oxygen
III. Habitat

Answers

Answer:

Well everywhere on earth contains oxygen. A forest is a habitat. So oxygen.

The levels of organization in living things are cell, tissue, organ,
and organs-system. What level of organization is each layer - the
epidermis, palisade layer, spongy layer? __ . The entire
leaf would then be considered to be a__.


HELP PLEASE!!!

Answers

Answer:

An ion with a -2 charge, atomic number 17, an atomic mass of 25 has how many electrons?

Explanation:

All the following are part of photosynthesis except:
Group of answer choices

Transforms solar energy into chemical energy

Plants, algae and cyanobacteria can do it

Helps in making protein building blocks

Producers that are fed to consumers

Answers

I’m not sure I think it’s D.) Hope I could help :)))



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Producers that are fed to consumers

Which label belongs in the area marked Y?
A. Neither allele is dominant.
B. An intermediate phenotype is expressed in offspring
C. One allele is dominant over the other.
D. Both dominant alleles are fully expressed in offspring Y ​

Answers

I believe the answer is C

Answer:

the answer is A

Explanation:

do you guys no what dose-response relationship means

Answers

It is the description of the magnitude of the response of an organism as a function of exposure to a stimulus or stressor after a certain exposure time. Hope this helps!


2. Which country began studies on bioterrorist weapons in the 1930s? What
was the program known as? How did other countries respond to this?
3. Why is plague attractive as a bioterrorism weapon?
4. How did the English use smallpox during the French and Indian War?
5. Which country loaded botulism toxins into bombs? Why is botulism of less
concern than anthrax or plague?
6. What animal is tularemia most associated with? How can humans become
infected? In what ways might it be transferred to humans as a bioterrorism
weapon?
7. Why do you think countries or groups might use these diseases as
bioterrorist weapons? What advantages would they have over other types

Answers

Answer:

sjdjhewhehehe

Explanation:

nsnsjsjshe

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