Compare the spectra of mercury and sodium with the spectrum of an interstellar nebula.

A picture of 3 different atomic spectra. The first is labeled Mercury with 4 purple lines, 2 blue lines, 2 light blue lines, 4 green lines, 3 white lines, 1 orange line and 1 red line. The second is labeled sodium with two green lines. The last is labeled nebular with 6 blue lines, 3 light blue lines, 3 green-blue lines, 6 green lines, 9 yellow lines, 2 orange lines and 10 red lines.
Most street lights are made from one of two elements—mercury or sodium. Explain why astronomers prefer that cities use sodium street lights instead of mercury street lights.

Answers

Answer 1

Answer:

Astronomers prefer that cities use sodium street lights because the emission spectrum of sodium produces fewer lines than the emission spectrum of mercury. The emission spectrum of mercury causes interference, which can make it difficult to distinguish the emission spectra of astronomical objects.

Explanation:

edge

Answer 2

Astronomers prefer that cities use sodium streetlights because the emission spectrum of sodium produces fewer lines than the emission spectrum of mercury. The emission spectrum of mercury causes interference, which can make it difficult to distinguish the emission spectra of astronomical objects.

Who are astronomers?

Astronomers are scientists in the field of astronomy who focus their studies on a specific question or field outside the scope of Earth.

They observe astronomical objects such as stars, planets, moons, comets and galaxies – in either observational or theoretical astronomy. Examples of topics or fields astronomers study include planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies. A related but distinct subject is physical cosmology, which studies the Universe as a whole. Astronomers usually fall under either of two main types: observational and theoretical. Observational astronomers make direct observations of celestial objects and analyze the data.

In contrast, theoretical astronomers create and investigate models of things that cannot be observed.

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Related Questions

critically discuss how grassroots approaches and neo-liberalism fit in together​

Answers

Answer:

It concludes by highlighting that global comparisons are complex, multi- faceted and that political, cultural and economic context is critical

In an emergency, treaties can take effect before Congress approves them.
True
False

Answers

Answer:

no, I don't think so

Explanation:

1. What is an ecosystem?
A. a process in which plants take carbon dioxide from the atmosphere and hydrogen
from water, and release oxygen into the atmosphere
B. a group of living organisms interacting with one another as well as with nonliving
things
C. a predator that lies at the top of the food chain and may feed on plants, primary
consumers, or secondary consumers
D. an organism that attaches itself to dead tertiary consumers and breaks down the
matter of their bodies

Answers

Answer:

the answer is B

you can thank me later:)

What state is the only one to have a unicameral legislature?

Answers

Answer:

Nebraska

Explanation:

Anderson Jackson was the leader of what political party?

Answers

The New Democratic Party

Read the statement from the U.S. Constitution. Congress shall have power . . . to make all laws which shall be necessary and proper for carrying into execution the foregoing power. —The United States Constitution To what does this statement refer?

an executive privilege

the elastic clause

nonlegislative powers

limits on governmental power

Answers

Answer:

a                

Explanation:

Which of the following has been important impact of the globalization?

Answers

Answer:

At the same time, global economic growth and industrial productivity are both the driving force and the major consequences of globalization. They also have big environmental consequences as they contribute to the depletion of natural resources, deforestation and the destruction of ecosystems and loss of biodiversity.

Here your answer may be it's help full

Which government action would cause the national debt to increase?
A. Borrowing money from another country
B. Placing a tariff on all imported goods
C. Raising taxes on large corporations
D. Adjusting the discount rate for banks

Answers

Answer:

l think raising taxes on large corporations

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A student takes a bottle of cold water from the refrigerator and leaves it on the counter. Ten minutes later, the student noticed there is now water on the outside of the bottle. What scientific phenomenon explains the water on the outside of the bottle?

A.
Evaporation, because the temperature of the air nearest the bottle decreased causing the water droplets to form.

B.
Condensation, because the temperature of the air nearest the bottle decreased causing the water droplets to form.

C.
Evaporation, because the temperature of the air nearest the bottle increased causing the water droplets to form.

D.
Condensation because the temperature of the air nearest the bottle increased causing water droplets to form.

Answers

Answer: condensation D

Explanation:

I think of it as thawing. It’s getting warmer so the water begins to “defrost”.

Condensation occurred as a result of an increase in air temperature close to the bottle, which led to the formation of water droplets. As a result, choice (D) is the best way to respond.

What is condensation?

The opposite of vaporization, condensation is the transition of a substance from its gaseous to its liquid state. The phrase most frequently relates to the water cycle. It can also be described as the transformation of water from its gaseous state into liquid water when it comes into touch with a solid, liquid, or cloud condensation nucleus in the atmosphere.

Deposition is the term used to describe a change that occurs when a solid phase immediately changes from a gaseous phase.

When atomic or molecule clusters of that species develop within the gaseous volume of that species—much to how raindrops or snowflakes form within clouds condensation is triggered. It can also happen when the gaseous phase of that species comes into contact with a liquid or solid surface.

Hence, option (D) is accurate.

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why the metal shine?​

Answers

Metal shines because it doesn’t absorb light, it reflects it.
Reflection of light makes the metal shine

Explain how entrepreneurs contribute to economic growth.

Answers

Answer:

Entrepreneurs boost economic growth by introducing innovative technologies, products, and services.

Explanation:

Which branch of the Government would you find the Congress(House of Representatives and Senate)?

Answers

In the Legislative Branch ❤️

why are carbohydrates proteins fats and oil digested but water minerals and vitamins not digested in the body?

Answers

Carbohydrates, proteins, and fats are digested in the intestine, where they are broken down into their basic units: Carbohydrates into sugars. Proteins into amino acids. Fats into fatty acids and glycerol.

PLZ HELP I'LL GIVE BRAINLIEST

Select the correct answer from each drop-down menu.

In a mixed economy, the______ needs to intervene in the economy to protect the consumers, protect the environment, and ensure _______ practices.

Answers

where are the word choices?

Answer:government and fair trade

Explanation:

How the Korean Crisis impact the rest of the world?​

Answers

The impact of the Korean War on the civilian population was especially dramatic. Korean civilian casualties - dead, wounded and missing - totalled between three and four million during the three years of war (1950-1953). The war was disastrous for all of Korea, destroying most of its industry.

sler 2 Final Exam (COPY) 130130
Deforestation is the clearing of large areas of forest. Which of the following is MOST LIKLEY a cause of deforestation of the Amazon
Rain Forest?
A It produces 13 of the world's oxygen
OB. Native populations are able to interact with the modern world.
OC. Medicines have been developed from its numerous (many) plants.
D. Clearing the land results in more land available for farming and ranching

Answers

Answer:

D

Explanation:

Switching from white bread to wheat bread would be an example of which of the
following?
Fungibility
Elasticity
Non-excludability
Substitution

Answers

Answer:

Elasticity

Explanation:

How might monarchs react to the ideas of the Enlightenment?

Answers

Answer: Negatively

Explanation:

Enlightenment ideas were not completely against monarchs but did have problems with the absolute nature of the rule of said monarchs.

Before Enlightenment, monarchs generally ruled as they pleased with the logic being that they had the right to rule from God and so had the right to control the nation as their personal property.

Enlightenment was against this and instead espoused the logic that a monarch was only able to rule due to a social contract signed between them and the people whereby they would be allowed to rule provided they took care of their subjects.

Monarchs reacted to this with negativity because it meant that they had to stop being so selfish with resources and had to share power with the people. As time went on however, and with constant pressure on them, they had to relent and it led to the dissolution of several monarchies in Europe and the transition of others to Constitutional Monarchies.

how did wade-ins organized by civil rights activists in St. Augustine affect Florida?

Led to the desegregation of buses in town, Led to the desegregation of lunch counters, Led to the desegregation of movie theaters, Led to the desegregation of public recreation areas

Answers

Answer:

Martin Luther King Jr. being denied entry to the "whites-only" Monson Motor Lodge restaurant by owner James "Jimmy" Brock

Explanation:

Which of the following types of speech is generally protected by the First Amendment?

Answers

Answer:

Freedom

Explanation:

Constitution

Answer:

slander

Explanation:

Who took this position on the issue of slavery?

Answers

Answer:

Abraham Lincoln

Explanation:

Explain the term unity in diversity. How does diversity enrich our life?

Answers

Answer:

I hope it helps u

Explanation:

Diversity helps the people to communicate and learn from one other people of diverse races, ethnic origins, beliefs and social groups. It helps us respect other people and not just our own type of people. It encourages people to live, have a broader mindset and adjust in the society.

Have a nice day,

mark me as brainlist answer.

Thank you

ANSWER :

❥ It helps us understand that one thing can be done in many different ways.

❥ It teaches us to be tolerant and open-minded.

❥ It helps us evolve as better human beings as it makes us respect people with different religious beliefs, viewpoints, tastes, customs and cultures.

Hope it helps ya...!!♡

what are the features of African socialism​

Answers

Answer:

Common principles of various versions of African socialism were: social development guided by a large public sector, incorporating the African identity and what it means to be African, and the avoidance of the development of social classes within society.

Explanation:

a ball cost is rs 3520.what is the price of such 6 balls​

Answers

21120 I guess it is


Short question 21 points !!!!!

Answers

The Vietnam War had some differentiating aspects such as: The televised reports, the related artistic manifestations, and the concealment of information from the government.

What was the Vietnam War?

The Vietnam War was a war conflict that occurred in Vietnam during the second half of the 20th century. This conflict was due to the superiority of ideologies between socialism and capitalism.

What different aspects did this war have?

This war had several differentiating aspects compared to previous wars. Some of these were:

Much of the war was televised and audiovisual content was shared on television.Many artists opposed this war through songs, poems, paintings, among others.The government withheld a great deal of information because it was carrying out improper actions related to the rights of civilians.

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The following question references the novel The Three Musketeers by Alexandre Dumas.

Who is D'Artagnan's servant and what is his defining characteristic?

a.
Planchet, a good cook
c.
Mousqueton, lazy
b.
Planchet, dependable
d.
Mousqueton, a traitor

Answers

Answer:

b.  Planchet, dependable.

Explanation:

Alexander Dumas's "The Three Musketeers" revolves around the story of three musketeers and one hopeful musketeer. The plot follows D'Artagnan and his life working with or helping the three musketeers defend the French king from the conniving Cardinal.

In this historical romance, Planchet is the servant of D'Artagnan. He is a loyal servant, reliable and brave but whose advice is never taken to heart by his master, especially in terms of trouble.

Thus, the correct answer is option b.

How did Zen Buddhists believe a follower can attain wisdom?

a. By gaining wealth

b. By acting properly

c. By careful meditation

d. By having a strong faith

Answers

I believe it may be c

संघियताका कुनै दुई फाइदा र वेफाइदाहरु उल्लेख गर​

Answers

Answer:

त्यसोभए, हाम्रो संघीय सरकारको सरकारका धेरै फाइदाहरू छन्, जस्तै हामीलाई अत्याचारीताबाट जोगाउने, शक्ति फैलाउने, नागरिकको सहभागिता बढाउने, र बढ्दो प्रभावकारिता र बेफाइदा, जसमा कथित रूपमा दासत्व र पृथक्करणको रक्षा गर्ने, राज्यहरूबीच बढ्दो असमानता, राष्ट्रिय रोकावट हुने राज्यहरू।

Explanation:

Which country was the source of most of the illegal drugs, especially cocaine, that were imported into the US during the 1970s and 1980s?
A.
Mexico
B.
Colombia
C.
Guatemala
D.
Brazil

Answers

Answer:

B

Explanation:

Mark as Brainliest

Answer:

B

Explanation:

what do you think of global warming ​

Answers

Answer:

The heat is melting glaciers and sea ice, shifting precipitation patterns, and setting animals on the move. Many people think of global warming and climate change as synonyms, but scientists prefer to use “climate change” when describing the complex shifts now affecting our planet's weather and climate systems.

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