Reflecting telescopes use how many mirrors?

Answers

Answer 1

Answer:

Reflecting telescopes uses 2 hyperbolic mirrors.


Related Questions

List the three types of fibers possible in connective tissue and a brief description of each

Answers

Answer:

Look below

Explanation:

collagen fibers, elastic fibers, and reticular fibers.

Collagen fibers-Collagen fiber is made from fibrous protein subunits linked together to form a long and straight fiber

Elastic fibers-a yellowish fiber composed chiefly of elastin and occurring in networks or sheets which give elasticity to tissues in the body.

Reticular fibers-Reticular fibers, reticular fibres or reticulin is a type of fiber in connective tissue composed of type III collagen secreted by reticular cells.

Answer:

Single-mode cables include one glass strand (the core), surrounded by three layers of other material (the cladding, the buffer, and the jacket). They are relatively more expensive than other cables. Single-mode cables can transmit data at fast speeds over long distances (up to 62 miles) and offer higher bandwidths.

Multi-mode cables have more than one strand and transmit light along many paths. They support very fast speeds of between 10 Mbps to 10 Gbps over short distances (2,000 and 1,000 feet, respectively). Although these cables can transmit data over short distances, they will distort data over long distances.

Plastic optical fiber cables consist of plastic fibers instead of glass fibers. They are cheaper than glass optical fiber cables. They are similar to multi-mode cables; however, they are only reliable over short distances.

Explanation:


Monosaccharides are the simplest form that are repeating units of
what organic compound?

Answers

An organic compound is one or more atoms of carbon are covalently linked to atoms of another element

What is Biology and what are the branches of biology?​

Answers

Biologists study the structure, function, growth, origin, evolution and distribution of living organisms.
There are three major branches of biology – botany, zoology and microbiology. Botany is the branch of biology which deals with the study of different aspects of plants. Theophrastus is known as the father of Botany. Zoology is the branch of biology connected with the study of different aspects of animals. Aristotle is known as the father of Zoology. Microbiology is the branch of biology dealing with the study of different aspects of microorganism. Leeuwenhoek is known as the father of Microbiology.

Answer:

Biology is a branch of science that deals with living organisms and their vital processes. Biology encompasses diverse fields, including botany, conservation, ecology, evolution, genetics, marine biology, medicine, microbiology, molecular biology, physiology, and zoology.

Explanation:

What are the basic building blocks of DNA and RNA

Answers

Answer:

A nucleotide is the basic building block of nucleic acids.

Explanation:

RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.

Hope this helps even though it was yesterday :)

Which following is similar between RNA and DNA?
A) type of sugar
B) type of purine base
C) number of strands
D) type of pyrimide base.

Answers

It’s either a or b I think it’s b if not you can report my answer

Answer:

The correct answer would be A, type of sugar.

Explanation:

I hope this helps you! :)

Describe the purpose of the Nucleus in a cell / discuss the DNA structure inside of the nucleus and what is the job of DNA and how it ties
into genetics? Be as detailed as you can

Answers

The nucleus is able to control and regulate the rest of the cell(it basically tells it what to do). The DNA is made up of chromosomes,the DNAs shape is a double helix and is tightly packed inside of the nucleus. The job of the DNA is to regulate the rest of the cell and tell the cell what kind of cell it is and what job it needs to do(ex all cells are different so the dna determines the type of cell like a bone cell or blood cell) this ties in with genetic because your dna makes up your cells and your cells make up who you are.

2 questions.
An element is described as a shiny black solid with 3 valence electrons and 2 energy levels.
What is the name of the element? Is it a metal, nonmetal, or a metalloid?

Answers

Answer:

The correct answer is - Boron, a metalloid.

Explanation:

Boron is a metalloid element that has a crystalline shiny black appearance. It is found in solid-state in nature, It is also a micronutrient for the humans. It is placed in the second period of the periodic table of elements.

The electronic configuration of the boron element is - 1s2, 2s2, 2p1, as it is clear that they have 3 valence electrons in their outer shell, and by electronic configuration, it is clear that they are in 2 energy level (2).

Thus, the correct answer is - Boron, a metalloid.

How does nutrition as a characteristic of living organism differ in plants and animals?​

Answers

Explanation:

hope this answer will help you

plzzzz mark me as brainliest

Compared to absolute dating, what is an advantage of relative dating? A single fossil can be dated by itself. The actual age of a fossil can be determined. Fossils do not need to be arranged in different layers of rock. There is no limit to the age range of the fossils being dated.

Answers

Answer:

D: There is no limit to the age range of the fossils being dated.

Explanation:

Answer:

D.

Explanation:

proof below :D

1. Why have PCBs been so hard to clean up in Puget Sound and connected rivers? 2. What does the area by the storm water runoff drain in the Pacific look like? 3. Why is storm water runoff a problem for water pollution? 4. What are the arguments against regulations aimed at reducing water pollution? 5. How does land-use contribute to water pollution? 6. The video makes the case that all of us are polluters. Do you agree or disagree with this? Why? 7. Thinking about agriscience, what impact does water pollution have (or potentially have) for agriscience and agriculture? 8. What are some ways that agriscientists can contribute to reducing water pollution?

Answers

hmmm....i don't even know the answer to your question.

Answer:

1. One of the reasons PCBs have been hard to clean up from the puget sound is because they stay in the food chain. Once something is inside an animal it becomes much harder to remove from the environment than if it was just in water.

Explanation:

What is weight, and what unit is used to measure it?

Answers

Weight is The force acting on the object due to gravity. Newtons is the unit you use to measure it

Analyze the graph and complete the statements that
follow.
Average Monthly Rainfall
The greatest amount of rainfall was recorded in the
month of
The least amount of rainfall was recorded in the month
of
40
The relationship between time of year and amount of
rainfall is
30
Rainfall (inches)
W
20
M
10
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month

Answers

Answer: 1. may 2. february 3. nonlinear

Explanation:

The greatest amount of rainfall was recorded in the month of M, and the least amount of rainfall was recorded in the month of W, and one can observe that there is a variation in the amount of rainfall throughout the year, with some months having higher rainfall amounts than others.

What is a rainfall?

The graph of average monthly rainfall is a common tool used to visually display the variation in precipitation over time. Precipitation, which includes rain, snow, sleet, and hail, is a critical component of the water cycle and plays a significant role in shaping the Earth's environment. Precipitation patterns can vary widely depending on the location and season, with some regions experiencing very dry conditions while others receive abundant rainfall.

Hence, the greatest amount of rainfall was recorded in the month of M, the least amount of rainfall was recorded in the month of W, and one can observe that there is a variation in the amount of rainfall throughout the year.

Learn more about the rainfall here.

https://brainly.com/question/29299753

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Which of the following can challenge the constant state of homeostasis?
O Extreme temperature
O Low blood sugar level
O Elevated blood pH
O All of these

Answers

All of these choices challenge homeostasis

In your own words: What is the study of ecology?

Answers

Answer:

Ecology is the study of organisms and how they interact with the environment around them. ... Changes in ecosystems can result from many different factors including diseases among the organisms living in the area, increases in temperature, and increased human activities.

Explanation:

Stavanger, Norway has a warmer climate than the rest of Norway . What would cause this?

a.stavanger is the southernmost city .
b. the gulf stream carries warm water to the stavanger area .
c.the artic current carries cold water toward norway
d.there is no sea ice in the region to create the cold , deep ocean currents​

Answers

Answer:

Stavanger is warmer than the rest of Norway because the Gulf Stream carries warm water to the Stavanger area.

Explanation:

A is not correct because there are cities in Norway that are located further south than Stavanger.

B is correct because the location of Stavanger is right where the Gulf Stream influences the Norwegian coastline the most, bringing in warm water, thus warmer weather conditions as well.

C is not correct because if that was the case Stavanger would have been significantly colder.

D is not correct because the lack of sea ice is due to the Gulf Stream.

Which of the following regions has the highest population living in rural areas? a. Asia b. Africa c. North America d. Europe

Answers

Answer:

the answer is Asia

Explanation:

I hope this helps

From the givne options, the regions that has the highest population living in rural areas is Asia.

What is high population?

A high population describes a situation, where the number of people living in a particular geographical loctation is large or high. The concentration of people living in this area is high.

The most populated continent in the world is Asia.

Thus, from the givne options, the regions that has the highest population living in rural areas is Asia.

Learn more about high population here: https://brainly.com/question/26679558

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In a scientific experiment the ____ Group is The data that comes from the norm or situation. it is the information the other group compared to

Answers

It’s the control group.

The reason why is because the experimental group is the group in which they are experimenting with while the control group isn’t receiving any experimentation

Nucleotide are the basic unit of which macromolecules

Answers

Answer:

Like many biological molecules nucleic acids are polymers, long molecules formed of repeating units. With nucleic acids, the repeating unit is the nucleotide. A nucleotide consists of a five carbon sugar, a nitrogen containing base and a phosphate group.

How are the words system and ecosystem related?

Answers

Answer:

Well, almost everything. The term ecosystem was coined in 1935, though ecosystems have been around as long as living things. Eco is a spin-off from the word ecology and describes anything having to do with the environment and our relation to it. ... And system comes from the Greek word systema or "organized body, whole.

Explanation:

Give ONE suggestion for how humans can lessen their impact on Earth.

Answers

Answer:

Humans must decrease the harmful impact they have on earth or else the human population could go extinct forever. One way to do this is to inform the people on climate change and its effects. Recycling, using metal straws, carpooling, cleaning up beaches, pulling unncessary plugs in your house to reduce electricity usage, and doing so much more can help reduce the risk of climate change and help the world become a much healthier and stable place for humans, plants, animals, and the environment.  

Explanation:

How does the size of a cell's surface area change compared to its volume when the cell grows?
O
A
The surface area remains constant as the volume changes.
B. The surface area increases at the same rate the volume does.
o
The surface area increases faster than the volume does.
O
D
The surface area does not increase as fast as the volume does

Answers

Answer:

Option D

Explanation:

Testing hypotheses often involves designing experiments. Which of the following is the factor that is observed and measured in an experiment?

independent variable


control group

dependent variable


experimental gro

Answers

Answer:

dependent variable

Explanation:

The age of a cell is related to structures called ____.
*Talking about cancer cells*
Will report stupid answers.

Answers

Answer:

Telomeres

Explanation:

Telomeres are structures at the ends of chromosomes that protect the DNA. They get shorter as we age. When they become too short, the cell undergoes apoptosis (programmed cell death ) to avoid having cells with DNA that could become damaged.

However, cancer cells can sometimes overcome this, and can avoid telomere shortening, or avoid apoptosis once telomeres have become too short. This allows cancer cells to divide indefiniately.

How are interphase and mitosis different from one another?

Answers

the interphase is the stage in which the cell duplicates its content. Mitosis is the stage in which the cell divides into two new cells.

What is the interphase?

The interphase is the stage before cell division occurs. During the interphase, the cell prepares to divide into two new daughter cells (mitosis).

The interphase is composed of three phases,

The G1 stage ⇒  the cell duplicates in size. The organelles and other cytoplasmatic structures duplicate.

The S stage ⇒ occurs the DNI replication process, the synthesis of histones and other associated proteins.

The G2 stage ⇒ begins the slow process of DNI condensation. Duplication of centrioles completes. Structures such as spindle fibers are assembled.

What is mitosis?

Mitosis is a process by which, from a diploid somatic cell (2n), two daughter diploid cells (2n) are produced.  

Mitosis occurs in only one phase,

In the prophase, it occurs chromosomes condensation and nuclear membrane breaks.

During the metaphase, chromosomes are taken toward the center of the cell by the spindle apparatus. Once in the equatorial plane, chromosomes line up.

Each chromatid joins with a microtubule of opposites poles.

In Anaphase, chromatid sisters separate. The bonds that were keeping them together break, and each of them migrate to the opposite poles.

In telophase, duplicated chromosomes are already in the corresponding poles, and the nuclear membrane forms again in each pole.  

Finally, cytokinesis occurs.

In conclusion, the interphase is the stage in which the cell duplicates its content. Mitosis is the stage in which the cell divides into two new cells.

You will learn more about mitosis and interphase at:

https://brainly.com/question/807250

brainly.com/question/26678449

https://brainly.com/question/18477575

when do you hit puberty

Answers

Answer:

13-16 This is the age where the body is going through puberty and is contently changing this is what is known as puberty

Answer:

Explanation:

11-14

what is the correct order for scientific method​

Answers

Answer:

Make an observation.

Ask a question.

Form a hypothesis, or testable explanation.

Make a prediction based on the hypothesis.

Test the prediction.

Iterate: use the results to make new hypotheses or predictions.

Explanation:

some forms are different but this is mine.

Are all areas of Earth equally heated by the Sun? Explain your answer.
What happens to the density of water when it is warmed?
What happens to the density of water when it is cooled?
What happens as water heated in warmer places around the world rises?

Answers

No, due to the spherical shape of the earth the sun is farther away from areas near the top and bottom of the earth while the center gets the most heat.

When water is heated it expands and volume increases. The more space it takes up the lower it’s density is.

mammals have mammary glands on them. give reasons​

Answers

Answer:

To feed their young ones.

A farmer is harvesting this seasons strawberries to be sold. A farmer noticed his spotted strawberries grow better in all weather types and resist insects on their own. The next season, the farmer decided to get rid of the original strawberries and plans to only plant spotted strawberries. What is a result of this farmer's action?

Answers

Answer:

This question is incomplete as some part of the questions are missing and it also lacks options. The complete question is:

A farmer is harvesting this seasons strawberries to be sold. The farmer discovered spotted strawberries which appear to grow well in all weather types and resist insects on their own unlike other varieties of strawberries that require additional pesticides to resist insects.Pesticides are substances used to repel or control forms of animal life considered to be pests.The next season, the farmer decided to get rid of the original strawberries and plans to only plant spotted strawberries. What is a result of this farmer's action?

A. A decrease in strawberry production

B. An increase in the use of pesticides on the farm.

C. A decrease in genetic diversity of the strawberries.

D. An increase in genetic variation of the strawberries

The answer is C

Explanation:

According to this question, a farmer who is preparing to harvest strawberries for sale noticed that spotted varieties of strawberries grew better in adverse conditions, including pest resistance, than every other strawberry variety. He then decided to plant only the spotted strawberries the following season. This means that he got rid of every other varieties.

Based on this, we would realize that that farmer is trying to naturally solve the problem of pest infestation, hence, REDUCING the use of pesticides on the farm.

- Also, spotted strawberry can be produced in mass, which will not affect/reduce the production of strawberries.

- Genetic diversity refers to the total number of different alleles, which is responsible for varying traits, in the genetic makeup of an organism. The farmer's action of planting only one variety of strawberries will DECREASE GENETIC DIVERSITY IN THE STRAWBERRY SPECIES.

HURREEEEYYYYY PLEASSEEEEEE!!!
Which of the following is true in an isotonic solution?
A.) Water is moving only into the cell
B.) Water is moving only out of the cell
C.) Water is not moving
D.) Water is moving both in and out of the cell

Answers

The answer will probably be a
It is answer D because hypotonic is only moving in and hypertonic is only moving out
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Employment statistics in the US are often based on two nationwide monthly surveys: the Current Population Survey (CPS) and the Current Employment Statistics (CES) survey. The CPS samples approximately US households and collects the employment status, job type, and demographic information of each resident in the household. The CES survey samples non-farm businesses and government agencies and collects the number of payroll jobs, pay rates, and related information for each firm.a. What is the population in the CPS survey?b. What is the population in the CES survey? any one know this answer lol ? PLZZZ help Who were the most important law officials in American colonies?A. SheriffsB. Night WatchC. ConstablesD. Marshals Please stop staring at me said Pierce need punctuation Receptor proteins can change the ___ of the cell membrane. find the number of sides in a polygon if the sum of its interior angle is 900 degree Can someone help me with this math question please The author writes with a bias toward his mother. Which statement best supports that bias? A. She set rules when we were still babies. B. ...wailing in a store for candy was not accepted. .. C. I am certain she is the best mom in the world. D. ...so she was never controlled by her children. Which event play a major role in the early growth Christian religionA The disciples split into eastern and western Christians. B Paul the Apostle set up the Orthodox and Catholic churches.CThe Roman empires agree to protect Jesus from his enemies D. Paul the Apostle set up the Orthodox and Catholic churches. When the police arrest someone, who has more power? Who loses power? the founding fathers believed that all people are born with natural rights."which line from the declaration of indepence BEST represent the idea of "natural right Cars powered by hydrogen fuel cells emit which substance?oxygencarbon dioxidehydrogenwater Use the map below to answer the following question:Image of a map showing the migration of early humans. The map shows a migration path that begins in Africa and moves north, east, and south to Europe, Asia, and Australia. Another path is shown beginning in northern North America and moving southward through South America. 2012 The Exploration CompanyWhich of the following conclusions can be drawn from this map? (1 point) aEurope has more early humans than Africa. bHumans moved to Australia last. cHumanity spread outward from Africa. dHuman migration began in South America. What is the sale price of a shirt that was originally $25 but that has been marked down by 33 percent i need help on this read this excerpt from Poor Harold. which excerpt uses direct characterization? Arrange w, x, y and z in increasing order of values if w = (-3) (-9), x = 3 + (-9), y = (-3) 9 z = (-3) + 9. Solve the equation.-7b=21 PLEASE HELP !!!!!!!!!!!!!!!!!!Sues cafeteria has those cute little cartons of milk that are typical of school lunch. The milk supplier charges $0.45 per carton of milk, in addition to a delivery charge of $75. What is the maximum number of milk cartons that Sue can buy if she has budgeted $600 for milk? Write and solve an inequality that models this situation.Describe in words the quantities that would work in this situation. Who were Spain's primary European rivals and how did they influence Spanish settlement into Texas?