Answer:
The supernova is a fraction of 0.7 of the size of the observable universe which is 10 billion light years away.
Explanation:
Apparent brightness(AB) = luminosity(L) / 4πr²
∴ Luminosity(L) = Apparent brightness(AB) × 4πr²
Ratio of the luminosity of cepheid and supernova with the same brightness will be written as;
[tex]\frac{L_{cepheid}}{L_{supernova}} = \frac{AB_{cepheid}(4\pi r^2)}{AB_{supernova}(4\pi r^2)}[/tex]
[tex]= \frac{AB_{cepheid}(r^2_{cepheid})}{AB_{supernova}(r^2_{supernova})}[/tex]
[tex]\frac{(r^2_{cepheid})}{(r^2_{supernova})}[/tex]
Therefore, [tex]r_{supernova} = r_{cepheid}\sqrt{\frac{luminosity_{cepheid}}{luminosity_{supernova}} }[/tex] ...................(a)
Since we already have [tex]r_{cepheid}[/tex] as 100 million light year, substitute for luminosity of supernova and luminosity of cepheid as 10⁸[tex]L_{sun}[/tex] and 10,000[tex]L_{sun}[/tex] respectively in equation (a)
[tex]r_{supernova} = 100 million \sqrt{\frac{10^8L_{sun}}{10,000L_{sun}} }[/tex] ==> 10 billion light year
the ratio of the distance to the size of the universe:
Supernova / Observable Universe = (10 / 14) billion light years
Supernova / Observable Universe = 0.7
The supernova is a fraction of the size of 0.7 of the size of the viewable universe that is 10 bn light years away.
What is supernova and how far is it. ?The supernova is a very powerful and luminous Steller explosion and is a transitional astronomical event and take place ducting the evolution and is one of the stages of the massive star. Triggered by the leakage of the gases.
The distance of the fading of a white dwarf supernova of brightness is 108 sun and has brightness as comparable to that star of the brightest Cepheid. The star has a variable of 100 million light years form earth. Thus distance of the nearest supernova is 50 billion light years and the observable is 10 billion.
Find out more information about the fading white.
brainly.com/question/15726471.
Machines, tools, materials, and processes used to produce goods and services are defined as __________.
Answer:
Technology ---------
Answer:
technology
Explanation:
In what year did India and Pakistan become independent countries?
Answer:
Pakistan and India became independent in the year 1947
Explanation:
Pakistan 14 August, 1947
India. 15 August, 1947
If there were no ozone layer, what ethnicity of people will die first?
Answer:
A. White ethnicity
Explanation: People of the white ethnicity have the least amount of melanin in their skin which protects the skin from harmful UV rays
In Mesoamerica,most pyramids were often used as what?
Canada should increase the number of immigrant acceptances?
Answer:
Yes I think they should
Geography. I need help
whats the question though?
Which words or phrases describe the outer planets? Select two options.
rocky
gaseous
few moons
low density
slow rotation
Answer:
Well... the ones i would pick would be gaseous, low density, and slow rotation.
Explanation:
The outer planets are all made up of gas and have lower densities than the rocky planets like Earth or Mars and also, the rocky planets have a faster rotation than the outer planets.
Answer:
solid rocky dense
Explanation:
If freshwater flows into Mono Lake, why is the lake salty?
Answer:
Because the lake has no outlet, it is naturally salty. So all water that goes into the lake will be salty. I think.
Explanation:
Use the diagram of Earth to match each letter to its description.
Answer:
See below
Explanation:
Letter A
In the morning, the sun is in the east so the woman would be walking north.Letter B
A line of latitude is the equatorLetter C
At night, the sun is in the west so the man would be walking south.Letter D
Line of longitude - parallel lines to the meridian. Lines of longitude and latitude are perpendicular to each other.Copiază propozițiile de mai jos pe caiet, apoi completează cu informația corectă: 1. Tipul de sol specific zonelor de stepă se numește... . 2. Zona de vegetație care apare în jurul izvoarelor din deșert poartă numele de... . 3. Învelișul de sol se numește... . 4. Cel mai mare parc național din România este Parcul... . 5. Pentru prevenirea lipsei de apă din sol, în timpul verii se utilizează... .
1. Tip chernozem.
2. Oaze
3. Acoperirea solului este orice plantă care crește pe o suprafață de pământ.
4. Delta Dunării este cel mai mare parc național
5. Apară adânc. ...
... Folosiți irigarea prin picurare și un cronometru automat.
... Mixează materiale care absorb apa în solul tău.
in the circled area which of the following is the main activity: farming, fishing, forestry or mining.
Answer:
i think farming but im a dumb american
Explanation:
One of the earliest human civilizations in history settled along the Indus River.
Please select the best answer from the choices provided.
T
F
Answer:t
True, one the earliest human civilizations in the the history settled along the Indus Rives and as a matter of fact, it was called the Indus Valley Civilization and today it is know as India. The indus valley civilization very advanced in technology. They have many things that we recently invented or developed
Answer:
true
Explanation:
Circle O has a circumference of of 88 pie cm what is the length of the radius of the circle
Answer:44 Cm
Explanation:
what is the highest mountain in the universe
Answer:
Olympus Mons
Explanation:
Olympus Mons is the highest peak of universe. It is a volcanic mountain! It is situated in Mars. 5.0.
Answer:
olypia mons
Explanation:
bc i took the test
What are the 3 natural theories of climate change
Answer:
is this it?
Explanation:
Bio-thermostat -- rising temperatures and levels of carbon dioxide (CO2) in the atmosphere trigger biological and chemical responses that have a cooling effect, like a natural thermostat.
Cloud formation and albedo -- changes in the formation and albedo of clouds create negative feedbacks that cancel out all or nearly all of the warming effect of higher levels of CO2.
Human forcings besides greenhouse gases -- mankind’s greatest influence on climate is not its greenhouse gas emissions, but its transformation of Earth’s surface by clearing forests, irrigating deserts, and building cities.
Why is there such a
difference in the time
the sun sets in July
vs. the time the sun
sets in December?
Answer:
the December solstice occurs when Earth is near its perihelion , or closest point to the sun , around which time we're moving fastest in orbit .
Explanation:
what did the child do when he is here the cooing of doves in the Grove(the lost child )
PLEASE HELP ME OUT ASAP :(!!! 25 PTS
1.
Total Population GDP Per Capita Literacy Rate Internet Users
Canada 34,030,589 $39,400 99% 27 million
United States 313,232,044 $47,200 99% 245 million
Haiti 9,719,932 $1,200 52.9% 1 million
Qatar 848,016 $179,000 89% 563,800
Based on the information in the chart, which of the following comparisons is correct?
A. The United States has a lower standard of living than Canada
B. Haiti has a higher standard of living than Qatar.
C. Canada has a lower standard of living than Haiti.
D. Qatar has a higher standard of living than the United States.
2.
The map shows the area in North America devoted to agriculture. Based on this map, in which area would you be most likely to find agricultural land?
California
Maine
Northern Mexico
Coastal Mexico
Answer:
Qatar has higher standard of living than the United States
Compared to the United States, Qatar has a greater level of life, according to the data in the infographic. Thus, choice (D) is the appropriate one.
What do you know about Qatar?Since Mohammed bin Thani signed a treaty with the British in 1868 that acknowledged its autonomous identity, Qatar has been governed by the House of Thani as a hereditary monarchy.
Qatar was ruled by the Ottoman Empire until 1916, when it became a protectorate of the British. In 1971, Qatar attained independence. According to the Constitution of Qatar, Tamim bin Hamad Al Thani is the current emir, and he has complete control over the legislative, executive, and judicial branches of government.
He names the cabinet and the prime minister. The Consultative Assembly, which is only partially elected, has some power to veto laws and to temporarily remove ministers.
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What are the names of the country’s
Answer:
a-England
b-Scotland
c-wales
d-northern Ireland
e-Ireland
Explanation:
Answer:
B - Scotland
D - Northern Ireland
E - Ireland
A - England
C - Wales
Explanation:
Im super amazing at geography and I have been studying it for the past 5 years.
Which of the following countries did china control for many years greatly influencing the country’s cultural development
Which items describe people’s interaction with their environment
Technology does not affect the earth's environment.
People adapt to their environment.
People adapt their environment.
Population growth and the environment are unrelated.
Changes to the earth's environment rarely matter.
Changes to the earth's environment can be harmful.
Changes to the earth's environment can be beneficial
When we discuss our environment we mean the world in our general surroundings which can influence our lives.
When we discuss the environment we mean the world in our general surroundings that encompasses and influences all life on earth, including the air, natural ways of life, the water cycle, plants, creatures and different people.
Environmental change is one of the huge natural changes that is influencing the lives of individuals, creatures and plants everywhere throughout the world.
What are the stages of the life cycle of the Sun?
A.
Red giant → main sequence star → white dwarf
B.
Main sequence star → red giant → white dwarf
C.
Main sequence star → white dwarf → red giant
D.
White dwarf → main sequence star → red giant
Answer:
Option C - Main Sequence star --> white dwarf ---> red giant.
Answer:
B is the answer
Explanation:
I just did it on a p e x
Is our area of Northern Virginia on a Plate Boundary? Support your answer.
NEED HELP!!!
no, Virginia is located in the middle of the North American plate
Study the major mountain ranges on the map of the united states
Which mountain range is marked with the letter D
Answer:
The Appalachian Mountains.
Explanation:
Extending for almost 2,000 miles (3,200 km) from the Canadian province of Newfoundland and Labrador to central Alabama in the United States, the Appalachian Mountains form a natural barrier between the eastern Coastal Plain and the vast Interior Lowlands of North America.
The mountain range marked with D is the Appalachian Mountains
Appalachian Mountains is used to refers to spread of mountains from the Eastern part to Northeastern Part of North America.
The Appalachian mountain covers more than 1,500 miles (2,400 km).The Appalachian mountain spans across across 13 States in the United States.The Appalachian mountain range from the Central part of Alabama to Province of Newfoundland and Labrador in Canada.Learn more about Appalachian mountain here
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On the map above, what is the name of the river at letter A?
A.
the Nile River
B.
the Zambezi River
C.
the Congo River
D.
the Malawi River
Please select the best answer from the choices provided
A
B
C
D
Answer:
Congo River
Explanation:
River A is the Congo River.
You can match up the image you gave us with this image:
Answer:
river a is mostly in Congo area so its C. the Congo River
Explanation:
Describe the differences and causes of tornades and thunderstorms.
please help due today!!!!!
Answer:
A thunderstorm is a fast-rising column of air which produces heavy rain, wind, lightning, and sometimes hail. A tornado is a violently rotating column of rising air which is spawned by and is always attached to the bottom of a rotating thunderstorm. Thunderstorms last a lot longer than tornadoes.
Explanation:
A thunderstorm is a storm with strong-enough updrafts and downdrafts that strong static electricity charges develop, leading to lightning. The extremely-rapid heating of air during a thunderstorm produces thunder.
Tornadoes develop during some, but not all, thunderstorms. They are a rapidly-spinning updraft, reducing air pressure sufficiently around their base that buildings can explode due to the outside air pressure now being considerably less than the inside air pressure. They also hurl debris long distances. They are much more destructive than regular thunderstorms.
What does Gus Elefantis do during the summer
Answer:
A. Teaches Greek To Tourists
B. Drives An Ice Cream Truck
Tropical rainforests are not located in _______.
a. the Philippines
b. Australia
c. South America
d. England
Answer:
D. England
Explanation:
Tropical rainforests are not located in England. The mainly regions was the Philippines, Australia, and South America. Thus, option (d) is correct.
What is Tropical rainforests?Tropical rainforests can be found in South and Central America, central and eastern Africa, western India, East Asia, New Guinea, and Australasia. The sun almost directly strikes the tropics, releasing powerful solar energy that maintains temperatures high. The tropical rainforest is a hot, damp biome with year-round rain. It is famous for its lush vegetation canopies that form three distinct layers.
Rainforests grow on every planet except Antarctica. The world's greatest rainforests border the River in South And central america and the Congolese River in Africa. Tropical forests are found in the tropics, which are located between the Tropics of Cancer and Capricorn, slightly above and below the Equator. This environment is worldwide scarce and, according to some, more imperiled than tropical rainforest.
As a result, the Tropical rainforests are not located in England. Therefore, option (d) is correct.
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Many North African Berbers learned Arabic in addition to traditional Berber languages in order to __________.
A.
attend university
B.
read the Qur’an
C.
travel to the Middle East
D.
read Arabic literature
Answer:
B. read the Qur'an
Explanation:
I don't know how to explain it but my answer has to be at least 20 characters long.
Contaminated water ______________
Answer: Pollution
Explanation:
I will say water pollutions