Sample of radioactive element is it half-life of 3.0 days. It's 2.0 kg of the same several remains unchanged after 9.0 days, what was the initial mass of the sample question

Answers

Answer 1
The mass of the sample question is 141 kb

Related Questions

Which has the widest variation in climate?
A. Oceania
B. Antarctica
C. Africa
D. Polynesia​

Answers

Answer:

its b

<3 thank me anytime

Answer:

africa

Explanation:

A p E X

Use the drop-down menus to complete the statements. Letter A on the map is an example of a(n) . The are located in northeast Africa. The stretch across parts of India, Pakistan, Afghanistan, China, Nepal, and Bhutan. Letter D on the map is an example of a(n) .

Answers

Answer:

1. is island 2. is atlas mountains 3. is himalayan mountains 4. peninsula

Explanation:

got it right on edg 2022

Letter A on the map is an example of an island. The Atlas mountains are located in northeast Africa. The Himalayan mountains stretch across parts of India, Pakistan, Afghanistan, China, Nepal, and Bhutan and Letter D on the map is an example of a peninsula.

What is a peninsula?

Peninsula is a landform that extends from the mainland and is surrounded by water on most, but not all of its borders. A peninsula is also sometimes defined as a piece of land bordered by water on three of its sides.

Peninsulas exist on all continents. The size of a peninsula can range from tiny to very large. The largest peninsula in the world is the Arabian Peninsula. Peninsulas form due to a variety of causes. A peninsula is usually defined as a piece of land surrounded on most, but not all sides, but is sometimes instead defined as a piece of land bordered by water on three of its sides.

A peninsula may be bordered by more than one body of water, and the body of water does not have to be an ocean or a sea.

Learn more about peninsula, here:

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A map of Guyana , is drawn to a scale of 1:25,000. Find the length, in cm of a road, which represents a distance of 17 KM

Answers

25000 x 17

I think as specified by scale

What causes the frequent migration of animals in Africa?
O A. European colonization
B. Changes to natural resources
O C. Global climate changes
O D. Civil war

Answers

Answer: B. changes to natural resources!

Explanation: I hope this helps

Animals usually migrate to find food and water. In Africa, due to the dramatic changes in weather, animals migrate frequently. In many cases, they have to travel long distances in order to maintain their access to adequate water and food, often following the rains. Recently, scientists found that some zebras migrate over 300 miles one way to find food and water - this is the longest documented migration of large mammals in Africa.

Answer:

water sources changing

Explanation:

i got the answer wrong on myne

Which of the following is not an exponential function ?
A) y=5^x
B) y= 5x- 1
C) y= 5^x - 1
D) y = 5^x +1​

Answers

Answer:

A) y=5^x

B) y= 5x- 1

C) y= 5^x - 1

D) y = 5^x +1​ UTS  of the following is not an exponential function ?

A) y=5^x

B) y= 5x- 1

C) y= 5^x - 1

D) y = 5^x +1​Which of the following is not an exponential function ?

A) y=5^x

B) y= 5x- 1

C) y= 5^x - 1

D) y = 5^x +1​Which of the following is not an exponential function ?

A) y=5^x

B) y= 5x- 1

C) y= 5^x - 1

D) y = 5^x +1​Which of the following is not an exponential function ?

A) y=5^x

B) y= 5x- 1

C) y= 5^x - 1

D) y = 5^x +1​Which of the following is not an exponential function ?

A) y=5^x

B) y= 5x- 1

C) y= 5^x - 1

D) y = 5^x +1​

Explanation:

the impact of free trade agreements on the relationships between countries.

Answers

Answer:

How do free trade agreement affect the global economy?

Free trade agreements don't just reduce and eliminate tariffs, they also help address behind-the-border barriers that would otherwise impede the flow of goods and services; encourage investment; and improve the rules affecting such issues as intellectual property, e-commerce and government procurement.

Explanation:

sorry I just copy this

Correct me if I'm wrong

should fracking be allowed to continue anywhere in the UK?

Answers

Answer:

The U.K. government's temporary fracking moratorium should turn into a permanent ban. Allowing shale gas extraction makes sense only when a country is still phasing out coal, and then only under certain conditions. ... When it comes to carbon emissions, natural gas is certainly preferable to coal.

Explanation:

Please Mark me brainliest

The map above shows an example of how we can combine maps and data using GIS. The background is a satellite map of a city. The red stars show grocery stores that opened in 2007, and the blue circles show stores that opened in 2008.

Answers

Hi. Although you submitted a text, you did not submit any questions related to it. This prevents me from being able to give you any answers. However, when searching for your text on the internet, I was able to find a question that used that text as a basis. This question asked you to show what conclusion you could draw about the population of the area presented by the map. this question also showed the map and that map showed more blue stars than red stars. If that's the case for you, I hope the answer below will help you.

Answer:

According to the map we can conclude that the population of the region increased between 2007 and 2008.

Explanation:

As we saw in the text presented in the question above, the blue stars symbolize the grocery stores that opened in 2008, while the red stars represent the grocery stores that opened in 2007. Since the amount of blue stars is much greater than the amount of red stars, we can conclude that the population of that region grew during that two years. The population increase created a demand for new grocery stores, which were able to supply this population and efficiently. In summary, we can consider that the larger the population, the greater the amount of groceries needed.

Why do you think Canada has such an abundance of
natural resources?​

Answers

Answer:

Canada exports a large proportion of its mineral production, the mining industry is sensitive to world price fluctuations.

Nobody has ever lived in 80% of Canada. The country’s land remains mostly unexplored. Canada is bigger than the entirety of Europe.  

There are areas where there isn’t a road for hundreds of kilometers. The First People live mostly around the edges, and the Europeans mostly live within a hundred kilometers of the American border.

So, the resources are untapped because nobody is there to tap them

Explanation:

From 1990 to 2009, Canada's natural resource wealth, on average, grew by 6% per year. Our abundance of natural resources—such as timber, potash, uranium, oil and gas, and gold—as well as increasing demand for natural resource commodities worldwide are among the factors that have contributed to this growth.

Answer:

Explanation:

From 1990 to 2009,canadas natural resource wealth,on average grew by 6% per year.Our abundance of natural resources___such as timber ,potash ,uranium ,oil and gas and gold as well as increasing demand for natural resource commodities worldwide are among the factors that have contributed to this growth

Which of the following separates
visible white light into the various
colors of the spectrum?
A. a spectrum
B. a prism
C. an x-ray machine
D. an electromagnetic spectrum

Answers

Explanation:

the prism

b option.

is the correct answer

mark as brainliest

Answer: B. a prism

Explanation:

White light can be separated into every single one of the 7 major colors of the whole spectrum or rainbow by using either a diffraction grating or a "prism".

Do humans face mass extinction? If so How?

Answers

Answer:

human population size and/or specific human activities, not climate change, caused rapidly rising global mammal extinction rates during the past 126,000 years. Around 96% of all mammalian extinctions over this time period are attributable to human impacts.

Explanation:

The study states that this mass extinction differs from previous ones because it is entirely driven by human activity through changes in land use, climate, pollution, hunting, fishing and poaching. The effects of the loss of these large predators can be seen in the oceans and on land

what is one thing every human being does at the same time​

Answers

Answer:

Breath? Uhhh Think?

I'm not sure lol-

Breath and see I think ?

Boundaries that are formal: state lines, national borders, city limits are:
O Unimportant
O Created by Nature
O Man Made
O Created by Mistake

Answers

The answer is your second option, “Created by nature”

Directions: Complete the table below. Examine the given situations on the table. Determine its possible outcomes based on your previous experiences and your new knowledge about the properties of water. After that, identify the property of water involved in each situation and give the importance of that water property to living things and the environment.

Answers

Answer:

Washing clothes - Clothes will become clean and get wet - Solvent - Water as a solvent combines with soap to help remove dirt and smell from clothes

Wate soil going up to branches and leaves - Tree will obtain necessary water for growth and to sustain it. - Cohesion - Cohesion helps water to move upward

Adding ice to water - ice will float - density - Ice is more dense than liquid water which will allow the ice to float to the top

Swimming in a pool ocean etc - you are going to get wet and cool down - high specific heat - the ability of water to cool you down

Beads of water forming - the leaves are sweating or releasing water due to evaporation releases water back to the atmosphere

Explanation:

All of the following
are countries in Africa, EXCEPT *
Israel
Republic of Congo
South Africa
Ethiopia

Answers

Answer:

All of the following are countries in Africa, except Israel.

Explanation:

Israel is a Middle Eastern country on the Mediterranean Sea. It stands at the crossroads of Europe, Asia and Africa. Geographically, it belongs to the Asian continent and is part of the Middle East region. In the west, Israel is bound by the Mediterranean Sea.

Which of the following describes
an observatory?
A. a building that contains a telescope
B. a satellite that measures sound waves
C. an underground chamber that detects
neutrinos
D. a laboratory that measures geothermal energy

Answers

I believe the answer is A :)

Which of the following is NOT a benefit of organic matter

Answers

Answer:

disease

Explanation:

Next time give options

Answer:

disease

Explanation:

Was was considered the "first Cold War Event" that put the USA and the
Soviet Union in a position where military action almost occurred.

Answers

Answer:

Berlin Airlift.

Explanation:

Upgrades required by a Federal, State, Local, Territorial, or Tribal government are eligible if the code or standard:

Answers

Answer:

These updates are only eligible if the code or standard has the required type of restore, is appropriate for the type of restore, prevents disasters during installation, is a legal requirement, is uniform, and is enforced during the given period.

Explanation:

The question above refers to the mobilization of federal, state, local, territorial and tribal governments to solve structural problems created by natural disasters, terrorist attacks or any other human action that could harm the physical structure of the region. In situations like this, governments can look for economic and professional help to solve these problems. This assistance is provided by FEMA (Federal Emergency Management Agency) which analyzes assistance requests by preparing documents that present codes that specify the type of problem and help needed. These codes are only eligible if: they have the type of restoration required, they are appropriate for the type of restoration, they prevent disasters during installation, they are legal requirements, they are uniform, and they are applied for the specified period.

The Earth completes one revolution every
A day
В. week
С
month
D
year
Please select the best answer from the choices provided
A
B.

Answers

Answer:

the earth does a full revolution around the sun every year

Explanation:

Answer: D. year

Explanation:

The Earth completes 1 revolution around the sun every year.

Por qué el Dumping es considerado una práctica desleal como estrategia comercial? ¿Por qué afecta a los países periféricos?

Answers

por que no mas de la leche

Qual das alternativas abaixo apresenta importantes causas da Independência dos EUA (1776)? * 1 ponto

Answers

Bssbsnjsbsndndndnddbfbbfbfbff

An element is in the same column as calcium (Ca) in the Periodic Table of the Elements . The element must be a

Answers

Answer:

Alkaline Earth metal

Explanation:

As Group 2 of the periodic table consists of alkaline earth metals. Example : Calcium, Magnesium etc..

change the community to india for ​

Answers

You didn’t complete this question
What’s the full question?

Explain how the government of Canada and the United States are different? (Site 1)

Answers

Answer: Canada is a constitutional monarchy. The Queen, represented by the Governor General, is the head of state and the Prime Minister is the head of Government. The U.S. is a republic. The head of state and head of the Government are the same person: the President.

Explanation:

Answer:

Canada is a constitutional monarchy. The Queen, represented by the Governor General, is the head of state and the Prime Minister is the head of Government. The U.S. is a republic. The head of state and head of the Government are the same person: the President.

Explanation: edge 2021 i gote 100 on it

¿Qué ocurrió con la cantidad de vías de ferrocarril durante la etapa agroexportadora? (¿AUMENTO O SE REDUJO?)

Answers

Answer:

Durante la etapa agroexportadora la cantidad de vías de ferrocarril aumentó.

Explanation:

Durante la etapa agroexportadora hubo un considerable aumento en el número de vías de ferrocarril que permitió que los diferentes productos provenientes del campo llegarán al puerto para ser exportados. El tren disminuyó los costos y el tiempo de traslado de las mercaderías favoreciendo así a la economía ya que se abarataron los costos, más productores pudieron exportar su materia prima y más productos pudieron ingresar a diferentes partes del país de forma más eficaz beneficiando al crecimiento económico y social.  

use what you know about the formation of metamorphic rock to describe three events that could have led to the formation of the rock as it appears today

Answers

Answer:

1. a sedimentary rock was introduced to heat

2. It cooled into a solid

3. Wind and other debris could have altered the shape

Explanation:

para ti que es la responssabilidad?

Answers

Responsabilidad es dar cumplimiento a las obligaciones y ser cuidadoso al tomar decisiones o al realizar algo. La responsabilidad es también el hecho de ser responsable de alguien o de algo.

1. The model shown is known as the galactic city model, sometimes described as the contemporary urban model of the North
American metropolitan area. Among the features within this model are edge cities. Edge cities are large centers of
development on the urban periphery.
A. Describe TWO factors that led to the development of the galactic city as an urban landscape in North America.
B. Describe TWO ways that the spatial organization of commercial land use is different between the original central
business district (CBD) and an edge city.
C. Describe ONE negative impact of edge city development on the environment.
D. Explain one way sustainable design initiatives or smart growth policies could address negative impacts of edge city
development on the environment.
E. Explain one way in which brownfields can be redeveloped in postindustrial cities.
11

Answers

Answer and Explanation:

AP® HUMAN GEOGRAPHY 2019 SCORING GUIDELINES

Question 2

A. Describe TWO factors which led to the development of the galactic city as an urban landscape in

7 points: 2 + 2 + 1 + 2

North America. (2 points: 1 description + 1 description)

A1. Decentralization and suburbanization: population shift from the center city into the suburbs A2. Nuclei form around improved transportation that includes highways, interstates, and airports A3. Economic shift from industrialization to service-sector office parks

A4. Economic shift from industrialization or industries to high-technology operations or advanced

manufacturing

A5. Urban growth stimulated specialization and specialized centers outside the central business district

(CBD)

A6. Suburbs took on the roles more typically associated with CBDs

A7. Cheaper, more available, and easier to develop land in suburban areas

A8. Shifts in the spatial organization of production or the spatial organization of manufacturing

A9. Lack of planning or reduced regulation of land use in the urban periphery or unincorporated areas

B. Describe TWO ways that the spatial organization of commercial land use is different between the original CBD and an edge city. (2 points)

 Original CBD

B. 1. High-density buildings and/or land use; skyscrapers

B. 2. Mixed land use (residential, commercial, office)

B. 3. More walkable, pedestrian oriented B. 4. Smaller shops and retail

B. 5. Older, more historic

B. 6. Brownfields

B. 7. Greater access to public transit B. 8. Parking garages

B. 9. Grid pattern

Edge City

a. Low density buildings and/or land use; low-rise office buildings, “campus” architecture

b. Specialized land use; dedicated to office buildings and retailing (little to no residential land use)

c. Pedestrian unfriendly (lack of sidewalks) d. Big box stores

e. Newer construction

f. Greenfield development

g. Dominated by automobile

h. Large, open parking lots

i. Curvilinear or nonlinear pattern

                   C. Describe ONE negative impact of edge city development on the environment. (1 point)

C1. New construction areas, or urban sprawl, may replace open space or farms

C2. Loss of natural and/or animal habitats, introduction of invasive or nonnative species

C3. Dependence on automobile or lack of public transportation can result in increased air pollution and

greenhouse gas emissions or a larger carbon footprint

C4. Impact on land because low-density development occupies more land than a high-density development

(more land used for roads, larger building footprints)

C5. Lack of parks, green spaces, and trees causes heat island effect

C6. Numerous roads and parking lots absorb heat and contribute to the heat island effect

C7. Waste, soil erosion, or pollution from construction sites

C8. More impervious surfaces created by new construction (buildings, roads, parking lots) cause more

storm water runoff and flooding

© 2019 The College Board.

Visit the College Board on the Web: www.collegeboard.org.

Galactic city model is defined as the model that become popular with post-industrial cities.

What are the factors that led to development of galactic city?

A. Decentralization and subsidization: population shift from the center city into the suburbs. Nuclei form around improved transportation that includes highways, interstates, and airports.

B. 1. High-density buildings and/or land use; skyscrapers

   2. Mixed land use (residential, commercial, office)

    3. More walkable, pedestrian oriented

    4. Smaller shops and retail

C. 1. New construction areas, or urban sprawl, may replace open space or farms.

2. Loss of natural and/or animal habitats, introduction of invasive or nonnative species.

D. Impact on land because low-density development occupies more land than a high-density development (more land used for roads, larger building footprints)

E. More impervious surfaces created by new construction (buildings, roads, parking lots) cause more storm water runoff and flooding.

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HELPPPP pleaseee thank youuu

Answers

Answer:

cumulus, fair weather

These have flat bases and are often described as "puffy", "cotton-like" or "fluffy" in appearance.

and It looks so much like a cotton:D

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8.Which sentence is written in the active voice?A. The car was driven through the intersection without stopping.B. The driver drove the car through the intersection without stopping. If y=-5x + 2 were changed to y = -7x + 5, how would the graph of the new linecompare with the first one? Our SkyWhich statement BEST describes the themeof this poem?Palest colors tint the wakening sky,While black seeps away with its starry nightLike an ocean tide slipping off the beachAs pink and lavender spread the dawn's light.Gazing at the sky is a relaxing way to spendthe day.The sun arises like an eager childTossing off covers from this newest day,Making the sky brighten with hints of blueThat bloom the azure of a sun-sparked bay.There are many variations in the skythroughout the day.Wisps of clouds like heavenly feathers driftLazily across a blue painted sky,And as hard as they try, no bird can perchUpon thready clouds, all floating on high.Storm clouds in the sky can spoil a fun day.Birds enjoy soaring through clouds in the sky.Then one by one puffy clouds dot the skyJoining and forming dreamy myth-bred shapesOf lions that paw the earth down belowAnd dragons that hide beneath their cloudy capes. Please help! pleaseeeeeeeeeeeeeeeee Please help! Q: How might Laura Collins Lyster- Mensh respond to Brutus statements on natural rights? Answer in a minimum of three complete sentences using supporting evidence from the lesson.Passage:If we may collect the sentiments of the people of America, from their own most solemn declarations, they hold this truth as self-evident, that all men are by nature free. No one man, therefore, or any class of men, have a right, by the law of nature, or of God, to assume or exercise authority over their fellows How great a proportion of natural freedom is necessary to be yielded by individuals, when they submit to government, I shall not inquire. So much, however, must be given, as will be sufficient to enable those to whom the administration of the government is committed, to establish laws for the promoting the happiness of the community, and to carry those laws into effect. But it is not necessary, for this purpose, that individuals should relinquish all their natural rights. Some are of such a nature that they cannot be surrendered. Of this kind are the rights of conscience, the right of enjoying and defending life, etc. Others are not necessary to be resigned in order to attain the end for which government is instituted; these therefore ought not to be given up. To surrender them, would counteract the very end of government, to wit, the common good. From these observations it appears, that in forming a government on its true principles, the foundation should be laid in the manner I before stated, by expressly reserving to the people such of their essential rights as are not necessary to be parted with. f(2)=Please help I dont got time ;-; PLEASE help quickly!!! This is timed T-T A monoprotic weak acid when dissolved in water is 0.66% dissociated and produces a solution with a pH of 3.04. Calculate the Ka of the acid. g Suppose that 10% of the undergraduates at a certain university are foreign students, and that 25% of the graduate students are foreign. If there are four times as many undergraduates as graduate students, given that a randomly selected student is foreign, what is the probability that the student is an undergraduate You purchased a stock at the end of last year at a price of $92. At the end of this year, the stock pays a dividend of $1.60 and you sell the stock for $106. What is your return for the year? Now suppose that dividends are taxed at 15 percent and long-term capital gains (over 11 months) are taxed at 30 percent. What is your aftertax return for the year? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) Which of the following best describes the difference between an adaptation and adapting? TIME REMAINING38:28The Communist party is the one major political party in __________.A.FranceB.EnglandC.ChinaD.Belgium 3. Lines of symmetry divide figures into two equal parts.TrueFalse Plants also use cellular respirationA. TrueB. False Is an object on the surface of Earth sitting still relative to outer space? A teacher asked her pupils what their favourite school subject was.PE273MathsEnglish135Science3 pupils said PE was their favourite subject.How many pupils said that Maths was their favourite subject?Can someone help me please In the future, will trainingand education becomemore or less desirable? Which of the following options best explains why you should use figurativelanguage?A. To confuseB. To clarifyC. To illuminate meaning and enhance understandingD. None of the above For each of the goods, classify them according to whether they are rivalrous, nonrivalrous, excludable or nonexcludable. Rivalrous is also referred to as rival in consumption.a. A sports team t-shirtb. The air we breathc. Atlantic Bluefin Tuna in the Mediterranean Sead. A toll road in normal traffic 2. The Vasco da Gama Bridge in Lisbon, Portugal, includes a trapezoid as part ofits structure (pictured above). The bridge's roadway goes through the median ofthe trapezoid. If the bases of the trapezoid measure 22 m and 38 m, what is theapproximate width of the bridge's roadway? Explain how you got your answer.