Why do we have a long waves and short waves

Answers

Answer 1

These phrases, which refer to the radio wavelength employed, are used in radio communications. There is no actual formal definition of longwave, however they are low frequency radio waves that are often below 540 kHz.

These low frequency radio waves travel across the earth via ground waves and may be picked up practically everywhere. On the other hand, shortwave radios encompass the spectrum from long or medium wave up to microwave frequencies and are higher frequency (hence shorter wavelength). Medium frequencies (HF) are a combination of ground and sky wave and may be received at medium to long ranges. Higher frequencies (VHF and UHF) are mostly short range sky wave propagation.

Answer 2

Answer:

If we vibrated the rope rapidly then a short wave was created and if we vibrated the rope less frequently not as often but a long rope was created.


Related Questions

What contributions do you think hermeneutics as a philosophy of education can make to your classroom practice

Answers

Hermeneutics as a philosophy of education can bring several positive contributions to the classroom, such as increasing cognitive development and critical thinking.

What is hermeneutics?

It is a philosophy of Greek origin that refers to the study and interpretative and reflective techniques, of texts and speeches, of diverse and relevant themes, such as social, political and religious themes.

Therefore, as a philosophy of education, hermeneutics helps the student to broaden his vision and interpretive capacity of essential issues for society.

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Tha answer
To this question on hand

Answers

Answer:

I think u didn't add an option that is

16

The answer is 16

Step-by-step explanation:

[tex] \frac{6}{y} = \frac{9}{24} [/tex]

Cross multiply

[tex]24 \times 6 = y \times 9[/tex]

Take 9 to the other side

[tex] \frac{24 \times 6}{9} = y[/tex]

Do the cuttings

[tex] \frac{24 \times 2}{3} = y[/tex]

[tex]8 \times 2 = y[/tex]

16 = y

You have to cross multiply. So multiple 6x24 and 9xy. You’ll get 144=9y. Now you need to isolate the variable by diving both sides by 9. Do that and you get y=16

How much of a role do you think a government (municipal, provincial, and/or federal) should have in the development of jobs?

Answers

The role i  think a government (municipal, provincial, and/or federal) should have in the development of jobs are:

make decisions that  areas of law that affect their province .Building of public transportation.Building permits as well as  zoning and  city parks.

What is the role of  government at all levels as regards job development?

The government at provincial and territorial governments and at federal should be able to make laws, and provision to provide jobs for the people.

This can be done by  Building of public transportation, which will help in agricultural system and this can improve the economy and bring about provision of jobs.

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This structure is called a(n) It was used primarily for purposes.

Answers

This structure is called a ziggurat and it was used primarily for religious purposes.

What are ziggurats?

Ziggurats can be defined as elevated series of platforms which typically consisted of massive stone structure and they were built in ancient Mesopotamia.

Based on historical information and records, we can logically conclude that this structure is called a ziggurat and it was used primarily for religious purposes.

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Which nation in Eastern
Europe began a labor union
in opposition of the
communist rule of the Soviet
Union.
A. Spain
B. Belarus
C. Poland

Answers

The Answer is C. Poland

Prompt
When preparing to create a soccer team at your school, your principal asks you who should be in charge of running this team. Which
form of government would you use as a model for creating your team, and how many people would you put in charge?
<< Read Less

Answers

Answer:

A teacher at the school would be in charge of the soccer team. It would be an oligarchy, because the players cannot vote

Many countries across the world have
several _____
A. governments
B. languages
C. islands

Answers

Im pretty sure the answer is B

what is the definition of derived vegetation​

Answers

made from a plant: plant-derived drugs. Chemistry: types of chemical.

HELP!!!!!!! Lots of points on the line

Answers

B- They kept their language and culture

Select all that apply.

Select the connecting words from the racoon paragraph that help to establish sequence.


where
first
as
ready
finally
because
when
always

Answers

The connecting words in the racoon paragraph that help to establish sequence is the word "Finally".

What is a connecting words?

It is also known as a linking word that helps to connect ideas together in a piece of writing.

Hence, the word "Finally" is connecting words in the racoon paragraph that help to establish sequence.

Therefore, the Option E is correct.

Missing word "When my brother Jordan brought home a baby raccoon he found in the woods, we thought at first it would be a perfect family pet. We named him Tubby because he was so round and plump. Dad helped us build a box for him to sleep in. Mom found some soft, clean rags for his bed. We laughed and laughed as we watched Tubby eat and play. As Tubby grew bigger and stronger, our laughter stopped. Tubby scattered Dad's neckties all over the house. He broke Mom's favorite vase. He knocked over Jordan's bike. He treed our cat. He even chewed up all the rolled newspapers I had ready for my paper route. Finally, Dad had to call the game warden to come get Tubby and to return him to the woods where he belonged. We were sad to see him go, but we had learned a valuable lesson. Wild animals do not always make good pets."

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A customer needs help spreading out their payment between a credit card, debit card,
EBT, and gift card by specific amounts. What should you do?

Tell them the system does not allow them to pay with more than two cards.

Tell them the system does not allow them to key in specific amounts for each card.

Show them how to select Other Payment Options and then Multiple Payment Type.

Show them how to insert a card, key in the amount, and repeat until basket is paid in full.

Answers

When a customer needs help spreading out their payment between a credit card, debit card, EBT, and gift cards by specific amounts, you should D. Show them how to insert a card, key in the amount, and repeat until the basket is paid in full.

What are the payment options?

A customer can use any of the following payment options:

CashChecksDebit cardsCredit cardsGift cardsMobile paymentsElectronic bank transfers.

Thus, you should provide guidance to a customer who needs to spread out their payments by using various payment options.

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There are many subfields of psychology mentioned in this chapter. Pick a subfield, define it, and provide an example of a job that would correlate with this field. For example, an individual that is interested in educational psychology may become a school psychologist.​

Answers

Answer:

Brain science has turned into a vital and well-known subject today. It manages numerous issues of day-to-day existence. Brain science assists us with figuring out the way of behaving of individuals around us, why they act diversely and what powers are capable of making them so not the same as others.

It attempts to make sense of a wide exhibit of elements engaged with what we individuals do. The standards made sense of by brain research provide us with a sane premise of comprehension of what we and others do. Brain science has been characterized in numerous ways. In old days individuals were dissecting the conduct angles based on their way of thinking. They accepted that there is a spirit in each person, which is liable for every one of our exercises.

This view prompted the assessment that the topic of brain science should be the investigation of the soul. Yet, this definition couldn't address the inquiries in regards to the presence of the soul and its openness for study. This condition prompted another definition by Greek logicians who characterized brain research as a 'study of the psyche'. Yet, this definition was additionally dismissed on similar grounds as the soul was dismissed.

Afterward, Wilhelm Wundt a clinician who laid out the main mental research center at the University of Leipzig in Germany characterized brain science as the investigation of cognizance. EB Titchener the pupil of Wundt, proposed the technique of Introspection to concentrate on awareness. But since of its subjectivity and informal strategy for study, this definition was additionally dismissed.

Continuously, because of the improvement of logical standpoint individuals began thinking on a logical premise and started to characterize brain research as a study of conduct. At long last, it is JB Watson (1913) who characterized brain research as a study of the conduct of humans as well as creature creatures.

Find out the following measures
A, crude birth rate
B, crude death rat
.
.
.

Answers

Answer:

number of lives births per 1,000


5. Economics is the study of the use of
goods and services?

Answers

Answer:

The answer is Consuming.

Explanation:

Economics is the social science that studies the extraction, production, exchange, distribution and consumption of goods and services; which seeks the way or means to meet human needs through limited resources, which can be goods such as; food, clothing, technology, housing, among others, The ultimate goal of the economy is to improve the living conditions of people and societies.

What do you think it was like during “The Golden Age of Greece”?

Answers

The Golden age of Greece was a beautiful time filled with art music and entertainment the most recognized part of the Golden Age was the city of Athens, a hub for trade. During the golden age, Athens flourished allowing its people to love a life of luxury, people would spend time in the public bath catching up with friends and then maybe go see a play or listen to music, they enjoyed good food and bountiful wine, it was a time of since and peace, many famous philosophers of the time are from the Golden age.

The image is an example of:

A. a mineralized fossil.

B. an organic fossil.

C. an impression fossil.

D. decayed organic material.

Answers

C. an impression fossil.
The answer would be C

A drainage basin is:
O a. the full length of a major river.
O b. a lake or ocean into which a river drain.
c. the lowest level to which a river can erode.
O d. flood plain
O e. the total surface area drained by a stream and its tributaries.

Answers

A drainage basin is a region of land where water from rain or snowmelt flows into an ocean, lake, river, or other body of water.

Examine this cross section showing the distribution of water in loose sediments. Provide the correct term for each lettered feature.

Answers

The correct term for the lettered feature of the cross section showing the distribution of water in loose sediments are listed below:

A _______ Soil MoistureB _______ Water tableC _______ Zone of aerationD _______ Zone of saturation

Meaning of distribution of water

Distribution of water can be defined as a set of processes and actions by which water is given to different sections of the soil.

Water distribution is very important as the need for water differs in each level.

In conclusion, The correct term for the lettered feature of the cross section showing the distribution of water in loose sediments are listed above.

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2) a) Calculate the new average temperature of earth using information from Question 1 but
in a case where the whole earth is covered with water.

Answers

The average temperature of Earth given the solar irradiance is 238.4K.

How to calculate the temperature?

The following can be deduced from the information:

Let Earth's albedo =α =0.33

Radius of the sun ( Rs) =6.955×10⁵

Value of Boltzmann constant= 5.67×10-⁸

L= 1350

T = average temperature

L= 4σ (Te)⁴ / (1-α)

1 - 0.33 = 4 × 5.67×10-⁸×(T)⁴ / 1350

0.67  × 1350 = 0.0000002268*(T)⁴

(T)⁴ = 3230357142.9

T = 238.4 k

In conclusion, the temperature is 238.4K.

Complete question:

Calculate the average temperature of Earth where the solar irradiance (L) is 1350W/m² and the albedo of Earth is 0.33. Consider Earth to be a perfect black body and the Stefan - Boltzmann constant to be 5.67 × 10^-8 W.

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2.1.2 Total value of goods and services produced in a country, by citizens and non-citizens over a period of a year​

Answers

Answer:

Gross domestic product, or GDP, is the total value of all the goods and services produced in a country in a given year. This includes everything from the cars produced by the country's factories to the haircuts provided by its barbers. It also includes the value of services provided by non-citizens, such as foreign tourists visiting the country.

Explanation:

how nitrogen and oxygen are eqyally important?​

Answers

Both nitrogen and oxygen is important for organisms for a minute meditation of different vital functions. But oxygen is directly utilized by the orgasms while instead of 78% of nitrogen in atmosphere only some prokaryotes fix atmospheric nitrogen

Which of the following is NOT a type of plate boundary?
O a. Transform boundary.
O b. Translational boundary.
O c. Divergent boundary
O d. Convergent boundary.
O e. none of the above

Answers

Answer:

translation boundary is the answer

Translational boundary is not a type of plate boundary

States with Capitals, Tropic of Cancer, Standard Meridian (Location and Labelling) in india

Answers

The Tropic of Cancer passes through eight states in India whereas the Standard Meridian passes through five states in India.

The Tropic of Cancer is the northernmost circle in the latitude of the earth. The Standard Meridian is the longtitude that helps describe the time in a country.

The Tropic of Cancer is among the most prominent latitude circles that divide the earth in various levels. The Tropic of Cancer passes through India. The line specifically passes through eight Indian states. These states are: West Bengal, Tripura, Mizoram, Jharkhand, Madhya Pradesh, Chhattisgarh, Gujarat, and Rajasthan. The Standard Meridian is a longitudinal line that runs across the Indian subcontinent. This line describes the time in a country. In India it passes through five states.The states are: Uttar Pradesh, Chhattisgarh, Madhya Pradesh, Andhra Pradesh, and Orissa.

Therefore, the Tropic of Cancer passes through eight states in India whereas the Standard Meridian passes through five states in India.

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Major deposits of natural gas and oil are found?

Answers

Answer:

Although there are oil and natural gas reserves all over the world, the majority of them are in Saudi Arabia, Russia, the US, and Iran. The majority of oil is discovered in Texas, Alaska, California, North Dakota, and Oklahoma within the United States.

Explanation:

Answer: Most of the oil and natural gas reserves are in Saudi Arabia, Russia, the United States, and Iran.

Territorial courts are basically the same as _____.

Answers

Territorial courts are basically the same as local courts.

What are local courts?

A local court is a type of court that has a non-professional judge, and its jurisdiction is minimal. It is considered the lowest level of court.

Local courts or territorial courts only have jurisdiction in local cases and operate according to that specific territorial law.

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The Trail of Tears is an example of what Kind of Migration?
a. International
b. Interregional
c. Intraregional

Answers

The Trail of Tears is an example of : ( B ) Inter-regional

The Trail of Tears

The Trail of tears is the forceful migration of American Indian tribes located in the southern eastern parts of United states ( east of Mississippi River ). to the west of Mississippi river ( Oklahoma region ).This migration was part of Andrew Jackson's Indian Removal Policy.

Since this migration was from one region to another it is known as Interregional migration.

Hence we can conclude that The Trail of Tears is an example of : ( B ) Inter-regional.

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Considering what you know about how the sea floor is formed and how it moves, from the three choices below, where would you think the sea floor is oldest and why? Explain.


a) near the divergent plate boundary (Mid-oceanic ridge).

b) directly between the divergent and convergent boundaries.

c) in the area of the subduction zone near an ocean trench.

Answers

The area where the sea floor is oldest is in the area of the subduction zone near an ocean trench and is denoted as option C.

What is Subduction zone?

This is referred to the area which is characterized by constant collision of two or more tectonic plates.

This zone contains the oldest sea floor because the oldest ocean crust is being pushed under a continental crust and destroyed and is usually farther from the mid-ocean ridges.

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Which of the following is a safety precaution to take in order to avoid wildlife?
A. Make plenty of noise.
B. Do not wear anything scented.
C. Stay away from food and water sources.
D. All of the above.

Answers

Answer: C

Explanation:

It is important to stay away from the food and water sources of wild animals.

Answer: all of the above

Explanation:

12.5.2 test proven

I need help with this question it’s a lil different

Answers

The answer would be natural resource

1. The potential of exploitable water in Ethiopia is huge, so why is our agriculture still rain fed? Why most of the Ethiopian rivers are not navigable& irrigable?​

Answers

Despite that there are potential of exploitable water in Ethiopia, their agriculture are still mostly rain-fed because the rivers are not navigable & irrigable to the farm.

What is the characteristics of Ethiopia nature?

The nation of Ethiopia has great agricultural potential because of its available vast areas of fertile land, diverse climate, adequate rainfall, large labor pool etc.

However, despite this potential, the Ethiopian agriculture remained underdeveloped because most of it were rain-fed because the rivers are not navigable & irrigable to the farm.

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