Explain how a spectrum can be used to determine the elements found in a star

Answers

Answer 1
Each element absorbs light at specific wavelengths unique to that atom. When astronomers look at an object's spectrum, they can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy.

Related Questions

PLS HELP questions are in the picture!!

Answers

i got youu

Answer:

This picture is modeling how animals get nutrients and how it looks. If you look in the photo, you can see many animals and arrows pointing at one another, This shows animals fighting each other. An example would be the girafee, If you look closley the photo is showing the girafee getting nutrients from the tree. This shows the girafee getting the organisms it needs in order to survive.

Which of the following are matched correctly? (choose all that
apply)
short bone- carpals
long bone- femur
Irregular bone- Vertebrae
Flat bone- cranium
Irregular bone- sternum

Answers

The correct answers are

Short bone-carpals

Long bone-femur

Irregular-vertebrae

Flat bone-cranium


Please help, I will mark you as Brainiest!

Answers

This cell is in telophase since the chromosomes have reached the poles of the mother cell.

If it was metaphase there would be an ecuatorial plate which is not present.

which of the following is a food chain that can be made fro this food web

Answers

B

Only reasonable answer

can someone please help me with this i will give u extra points + brainliest (:

C4 H10 O+ O2 → CO2 + H2O + C3 H8
List each of the element quantities in the reactants.
List each of the element quantities in the products.
Is the equation balanced?
Which elements are not balanced?

Answers

Answer:

1. There are 4 C (Carbon) atoms, 10 H (Hydrogen) atoms, and 3 O (Oxygen) atoms in the reactants.

2. There are 4 C (Carbon) atoms, 3 O (Oxygen) atoms and 10 H (Hydrogen) atoms in the products.

3. Yes, the equation is balanced.


Use the drop-down menus to identify the career that matches each description.
Checks and documents the amount of a resource used by a household or facility:
Analyzes employers to make sure they do not discriminate unfairly:
Oversees the workers involved in analyzing a cause of death

Answers

Answer:

Checks and documents the amount of a resource used by a household or facility:

✔ Utilities Meter Reader

Analyzes employers to make sure they do not discriminate unfairly:

✔ Equal Opportunity Representative

Oversees the workers involved in analyzing a cause of death:

✔ Coroner

Explanation:

Edge2020

Checks and documents the amount of a resource used by a household or facility: Utilities Meter Reader, Analyzes employers to make sure they do not discriminate unfairly like  Equal Opportunity Representative

Oversees the workers involved in analyzing a cause of death Coroner

what is document ?

A document can be defined as a form of useful information, it can be in digital and nondigital forms.

A document can be either digital or nondigital. Different methods are used to store digital and nondigital documents.

A paper document can be physically stored in a file cabinet, whereas an electronic document is stored in a computer as one or more files.

Digital documents can also be part of a database whereas Electronic document management programs deal with the management, storage and security of electronic documents

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Which of the following has not sped up the erosion of wetlands in coastal Louisiana?
A. the dredging of thousands of kilometers of canals throughout the wetlands
B. the increase in acidity of the rainwater in the southeastern United States
C. the loss of barrier islands off the coast of Louisiana
D. the 2010 Deepwater Horizon well blowout

Answers

Answer:C

Explanation:The answer is c because the loss of an island does not add or decrease erosion while all the others do

A chimpanzee has 48 chromosomes. When performing meiosis, one chromosome does not split properly in Anaphase II, causing one cell to have an extra copy of that chromosome. Knowing what you know, how many chromosomes should the MUTATED chimpanzee egg cell have? 48 49 24 25

Answers

Answer:

The mutated cell will have 25 chromosomes.

Explanation:

Meiosis is a cell division process in sexual reproduction which involves two successive divisions of a cell having a diploid (2n) number of chromosomes into four daughter cells having a haploid (1n) number of chromosomes.

Meiosis consists of two successive nuclear divisions, meiosis I and meiosis II. Each division consists of these stages: prophase, metaphase, anaphase, and telophase.

Anaphase consists of anaphase I and II. During anaphase II, the centromeres linking the two pairs of chromosomes which are called chromatids separate, and the sister chromatids move toward the opposite poles of the cell and are now called chromosomes.

Therefore in the chimpanzee having 48 chromosomes, after underoing meiosis, each daughter cell will have 24 chromosomes. If there is a case of non-separation of one chromosome, the cell will have 1n + 1 chromosomes i.e. 24 + 1 = 25 chromosomes.

suggest a reason for the great variability seen in the structure of pollen grains

Answers

Hey~

Its affected by the different flower/plant types.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

a scientist finds a rock with fossils at two different levels tell why he or she might conclude that the fossils on the bottom are older the the fossils on the top

Answers

Answer:

I don't remember much, but I'll try my best.

Explanation:

Over time, sediments rocks pile up to form horizontal layers of sedimentary rocks. The bottom layer of rock forms first, which means it's the oldest. This would mean that while you can't be sure when each layer of sediments formed, each layer is younger than the one below it.

What do ribosomes produce following
instructions from the nucleus?
A. energy
B. proteins
C. DNA

Answers

Answer:  Here's what I could find:

Ribosomes get their orders for protein synthesis from the nucleus, where portions of DNA (genes) are transcribed to make messenger RNAs. An mRNA travels to the ribosome and uses information it contains to build a proteins with specific amino acid sequences.

Explanation: I'm pretty sure it's protein, if not then it's DNA.

According to the law of conservation of matter, we know that the total number of atoms does not change in a chemical reaction and
thus mass is conserved. The reactant in this model is hydrogen peroxide Hydrogen peroxide decomposes to produce water and
oxygen gas. How many water molecules must be added to complete this model?
es)

Answers

Explanation:

H202 = H20 + O2

by balancing the this skeletal equation : he get

2H202 ( hydrogen peroxide) = 2H20( water) + O2 (oxygen)

so 1 more water molecules is needed to complete this model ..

Help!!
Select the correct location on the diagram,
The Sun is the main source of energy for all the subsystems of Earth. Identify the subsystem that can store the most energy from the Sun due
to its high heat capacity.

Answers

Answer:

Water

Explanation:

Just took post test for edmentum

Nearly all climatic and biological activities on Earth depend on solar energy, which is the primary energy driving our climate system. Numerous Earthly processes, such as surface warming, evaporation, photosynthesis, and air circulation, depend on energy from the sun.

What are the Sun is affected by its high heat capacity?

The sun heats the earth's surface, and as the air above it warms as well, wind is produced. Water evaporated by the sun produces clouds and rain, which in turn give us moving rivers and streams.

As a result of the heat being introduced to the system doing some pressure-volume work at constant pressure, the heat capacity at constant pressure is higher than the heat capacity at constant volume.

In a system with heat capacity at constant volume, the entire heat input is used to increase the temperature.

Therefore, Energy comes from both the wind and moving water (hydropower). So you can see, the sun is the source of a variety of natural energies.

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what are five relationships between animals

Answers

Answer:I will be pilot anyways I know one there is a commensalism between a dolphin and the birds where the birds push the fish to the top of the water column and then the birds push the fish down to the dolphins I will be pilot

Explanation:

Which statement describes a reason that radioactive decay is hazardous?

Answers

Answer:

C

Explanation:

Radiation can either kill cells or damage the DNA within them, which damages their ability to reproduce and can eventually lead to cancer. When radiation is present, high energy particles pass through your body. These can collide with atoms in your body and disrupt atomic structure.

Answer: c

Explanation:

Which statement accurately describes the relationship between weight and mass?
A:Weight is an object's mass multiplied by it's diameter.
B:Mass is an object's weight multiplied by it's diameter.
C:It's weight is an object's mass multiplied by the amount of gravitational force acting on that object.
D:Mass is an objects weight multiplied by the amount of gravitational force acting on that object.

Answers

Answer:

Hello! The answer to your question is (C) It's weight is an object's mass multiplied by the amount of gravitational force acting on that object.

Explanation:

Because of base pairing in DNA, the percentage of​

Answers

Answer:

Since certain bases always appear in pairs, they will have equal percentages of the DNA composition. The percentage of adenine will equal the percentage of thymine, and the percentage of cytosine will equal the percentage of guanine. Together, these percentages will add to 100%.

Explanation:

The percentage of Adenine is always equal to the Thymine because of base pairing.

Complementary Rule:

It say that the percentage of Adenine is always equal to the Thymine and percentage of Cytosine is always equal to the percentage of Guanine.

Thus the total percentage of Purine and pyrimidine is 100%.

Therefore, the percentage of Adenine is always equal to the Thymine because of base pairing.

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If mice from the F1 generation are crossed, their offspring are the

Answers

Answer:

F2 generation

Explanation:

If mice from the F1 generation are crossed, their offspring are the F2 generation.

What are the characteristics of F2 generation?

F2 second filial generation is the generation of individuals which arises as a result of inbreeding of interbreeding amongst individuals of F1 generation.

A second filial generation or F2 generation is a group of people born as a result of inbreeding and interbreeding among members of the same family. The generation of hybrids formed from a cross between genetically diverse people is known as the first filial generation.

First-generation (F1) progeny only showed the dominant traits, but recessive traits reappeared in the self-pollinated second-generation (F2) plants in a 3:1 ratio of dominant to recessive traits.

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environmental factor are the cause of cancer ​

Answers

True.
Explanation:
Lifestyle behaviors and environmental factors account for around 70-90% of cancer cases, according to new research published in the journal Nature.

After playing in an old shed, two boys tell their mother that they hurt all over. She checks and finds that they both have fevers. One says that he is dizzy and his head hurts, while the other says he thinks he might vomit. Wondering what the boys have gotten into, their mother seeks medical help. After running tests, the doctor informs her that the boys have managed to pick up a hantavirus. It is a very serious strain, Sin Nombre, and they must get treatment straight away. Considering the boys' situation, where do they MOST likely live?

Answers

Answer:

Considering the boys' situation, the boys live in the rural areas of one of the western United States, e.g. California.

Explanation:

Hantavirus is spread by rodents and is most common in rural areas of the western United States during the spring and summer months.  Hantavirus pulmonary syndrome also occurs in South America (especially in Argentina, Chile, Uruguay, Paraguay, Brazil, and Bolivia).  Hantavirus cases have also occurred in Canada and some parts of Asia, where they reportedly caused kidney disorders rather than lung problems.

The removal of carbon dioxide and nitrogenous
wastes from an organism illustrates the life function
known as

Answers

Answer: excretion

Explanation: the removal of carbon dioxide and nitrogenous wastes from an organism illustrates the life function known as excretion

Carnivorous plants have enzymes that are able to break down the proteins of the insects and small animals that they ingest. The mechanisms required for carnivorous plants have developed over many lineages across the world in separate ecosystems. The development of carnivorous mechanisms in plants is an example of:

Answers

Answer:

Convergent Evolution

Explanation:

Convergent evolution is the development of similar traits, across many lineages by plants and animals who originally do not have these traits but developed them because of the biome that they find themselves. Carnivorous plants are examples of living things that have undergone carnivorous evolution.

Plants lacking in Nitrogen have undergone carnivorous evolution for up to seven lineages. Sundews for instance have developed flypaper traps, a carnivorous property that helps them trap insects that they eventually digest.

What statement provides the strongest evidence to support the claim that birds evolved from dinosaurs?
A.
A fossilized nest of the herbivorous dinosaur Brachiosaurus shows that it laid external eggs.
B.
A fossilized rib cage of the semi-aquatic dinosaur Spinosaurus shows that it had lungs.
C.
Fossils of the winged dinosaur Archaeopteryx show that it had modified scales that produced feathers.
D.
Fossils of the beaked dinosaur Ankylosaurus show that it had modified scales that produced hard, bony plates.

Answers

Answer:

C. Fossils of the winged dinosaur Archaeopteryx show that it had modified scales that produced feathers.

C fossils of the beaked dinosaurs ankloaruos shows that it had modified scales that produced hard bone plates

How much of the world's oxygen is produced in the Amazon rainforest?

Answers

Answer:

About 76% of the oxygen

I need 1-2 paragraph on how cancer is related to the cell cycle and is Nikki at risk of getting it

Answers

I’ll give a basic outline for you. During mitosis, one cell divides to become two separate cells. If the dna of a cell is damaged before or during mitosis, the cell can begin to reproduce uncontrollably. This creates many more damaged cells, usually resulting in a tumor. Everyone is at risk for cancer, but some are more likely than others. Some cell mutations can be passed through generations, but either way, Nikki is at risk for cancer.

two facts about the earths movement

Answers

Answer:

While Earth orbits the sun, the planet is simultaneously spinning on an imaginary line called an axis that runs from the North Pole to the South Pole. It takes Earth 23.934 hours to complete a rotation on its axis and 365.26 days to complete an orbit around the sun.

Explanation:

Could I have brainliest please?

which of the following would not be considered a nontraditional sport

Answers

Answer:

theres no options..?

Explanation:

. . . . . . .

Study the timeline. A timeline. 4.5 billion years ago, Earth is formed. 4.3 billion years ago, Earliest water. 4.1 billion years ago, Single celled life. 3.5 billion years ago, Earliest oxygen and photosynthesis. 2.5 billion years ago, Complex single celled life. 1.5 billion years ago, Multi cellular life. 500 million years ago, Land life. 300 million years ago, Dinosaurs. 200 million years ago, Mammals. 130 million years ago, Flowers. 5 million years ago, Humans. Based on fossil evidence, about how long ago did the first single-celled life form appear on Earth? 130 million years ago 1.5 billion years ago 2.5 billion years ago 4.1 billion years ago

Answers

Answer:

B sry if im wrong

Explanation:

Answer: D: As the leaf decomposes, carbon from the leaf is left on the rock

Explanation:

Got it right!

Which of these represents the DNA segment from which this section of mRNA was transcribed?
mRNA Section
MOA MMO
A) GAAUCU
B) TCUTTG
C) ACTAAG
D) UCCTGA

Answers

Answer:

The answer is c

Explanation:

The reason it is c is because when you transcribe the oppisites in the image that is what you get ACTAAG

pls give brainliest

ACTAAG represents the DNA segment from which this section of mRNA was transcribed.

What is mRNA?

Single-stranded RNAs of the type known as messenger RNA, or mRNA, are used to make proteins. mRNA is created during transcription from a DNA template.

The function of mRNA is to transport protein information from DNA in a cell's nucleus to the cytoplasm, or watery interior, where the machinery responsible for making proteins reads the mRNA sequence and converts each three-base codon into an amino acid that belongs in a protein chain that is expanding.

 Therefore, mRNA is actually a type of nucleic acid that aids in the cellular machinery's ability to read the human genome, which is encoded in DNA.

Therefore, ACTAAG represents the DNA segment from which this section of mRNA was transcribed.

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Please help I will give brainist!

Answers

Answer:c

Explanation:

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