How many half-lives have passed when there are three times as much daughter isotope as parent isotope?

Answers

Answer 1

The ratio of parent to daughter atoms after two half-lives is therefore 1:3 (one-quarter to three-quarters).


Related Questions

1. What African countries run through line of Latitude 20'S?

Answers

anything parallel north. look up a map for that ok? good luck

what is a soil profile

Answers

Answer:

Soil Horizon

Explanation:

A soil horizon is a layer parallel to the soil surface whose physical, chemical and biological characteristics differ from the layers above and beneath. Horizons are defined in many cases by obvious physical features, mainly colour and texture.

A layer of parallel soil. Of a chemical

What is the cause of plants growing in the Sahara desert after hundreds of years?
increased drought
increased erosion
increased rainfall

Answers

I’m assuming it’s Increased rainfall since plants need water to grow but I could be wrong

ISRAEL IS ACTUALLY SMALLER THAN WHAT CENTRAL AMERICAN COUNTRY? ______________________________

Answers

Answer:

Israel is smaller than

El Salvador

how would you locate the north star in the sky

Answers

Answer: You can use the Big Dipper to find Polaris, which is also known as the North Star. Notice that a line from the two outermost stars in the bowl of the Big Dipper points to Polaris. And notice that Polaris marks the tip of the handle of the Little Dipper. The northern sky is a large clock, with Polaris at its center.

what is a mineral's hardness??​

Answers

Answer:

Hardness is the mineral's ability to resist abrasion or scratching.

HOPE THIS HELPS YOU!

What kind of map is the "Mystery Map of the World"?

Answers

Answer:

A site map

Explanation:

is Manhattan Island the largest island

Answers

Answer:

if your asking about the largest island in the world then greenland is

Not hardly.

-- The area of Manhattan Island is 22.82 square miles.

-- Almost right next door to Manhattan Island lies Long Island, also in New York State.  A big part of Long Island is the Brooklyn and Queens boroughs of New York City.  The area of Long Island is 1,401 square miles.  That's 61 times the size of Manhattan Island.

-- 18 states in the US have islands bigger than Manhattan Island.

-- 2 states in the US have islands bigger than Long Island.

-- Hawaii is an Island.  It's 2.9 times the size of Long Island.

-- There are 9 islands in the US that are bigger than Long Island.  Hawaii is one of them.  The other 8 are in Alaska.

-- The 100 largest islands in the world are all bigger than Long Island.  A few of them are:  Greenland,  Australia,  Antarctica,  Madagascar,  Honshu Island Japan,  Hokkaido Island Japan,  Kyushu Island Japan,  Great Britain,  Ireland,  New Zealand North Island,  New Zealand South Island,  Cuba,  Iceland,  Sri Lanka,  Tasmania,  Taiwan,  Sicily,  Sardinia,  Jamaica,  Cyprus,  Puerto Rico,  Corsica,  Crete.    

-- Antarctica itself is an island.  It also has smaller islands around its coast. ONE little island off the coast of Antarctica, called Alexander Island, is about 12 times the size of Long Island.

What factors influence the distribution of plants and animals. Give examples please

Answers

Answer:

Explanation:

climatic factors consist of sunlight, atmosphere, humidity, temperature, and salinity;

edaphic factors are abiotic factors regarding soil, such as the coarseness of soil, local geology, soil pH, and aeration; and.

social factors include land use and water availability.

Which layer do you think has the most dense air (more particles, closer together)?
Question In science​

Answers

Answer:

Closer together

I think

Explanation:

The troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region.

An unconformity that results when new sediments are deposited on eroded horizontal layers is a(n) _____

A. angular unconformity

B. disconformity

C. crosscut unconformity

D. nonconformity

Answers

Answer:

disconformity

Explanation:

A fault or intrusion is younger than the rock it cuts through, according to. Law of cross-cutting relationships. The age of a rock in years is known as.

Select the correct answer. Robert Livingston was sent to France in 1801 in the hopes of doing what?​

Answers

Answer:

C.  Purchasing the Louisiana Territory for the price of $15 million

Hope this helps!

Answer:

I say B

Explanation:

Jefferson sent James Monroe to join Robert Livingston in France to try to purchase New Orleans and West Florida for as much as ten million dollars

Burning organic material such as unused parts of crops,
yard waste, leftovers from processing food, and animal
waste produces energy from biomass. How does biomass
energy production compare with that from other renewable
sources? Consider what you learned in the article. Why do
you think biomass energy might be more common? What
might be a downside of biomass compared with other
renewable energy sources?

Answers

Answer:Biomass contains stored energy. That's because plants absorb energy from the sun through the process of photosynthesis. When biomass is burned, this stored energy is released as heat. ... Many different kinds of biomass, such as wood chips, corn, and some types of garbage, are used to produce electricity.

Explanation:

List 3 transportation corridors in North America

Answers

Answer: north, central and south

Explanation: Liberalization and globalization of trade have made necessary the restructuring of North American transport corridors as the commercial environment changed. These include three main longitudinal (north, central and south).

heavy rainfall is the most common cause of tsunami. is it true or false​

Answers

Answer:

i think its false

Answer:

False

Explanation:

I hope this helps. Have a good day!

explain how public policies are impacted by population demographics

Answers

Answer:

Demographic changes can affect GDP growth through several channels. First, lower growth in population directly implies reduced labor input. Second, lower population growth has an indirect potentially negative impact on individual labor supply insofar as it leads to higher tax rates which reduce the incentive to work.

Demographics can include any statistical factors that influence population growth or decline, but several parameters are particularly important: population size, density, age structure, fecundity, mortality, and sex ratio

Which of the following statements best explains the connection between the social status of women and a country's
overall health?
A. Women who enjoy a higher social status are usually less educated than women of a lower social
status.
B. Women who enjoy a higher social status are usually more educated than women of a lower
social status.
C. Women who enjoy a higher social status are likely to have far more children than women of a
lower social status.
D. Women who enjoy a higher social status are less likely to have healthcare resources than
women of a lower social status.

Answers

Answer:

Correct answer is B. Women who enjoy a higher social status are usually more educated than women of a lower  social status.

Explanation:

Option A is not correct as women of higher class have more opportunities to be educated than the woman of lower class.

Option B is correct because it is a higher possibility that those women will enroll some university or college as they don't have financial troubles.

Option C is not correct as women with a higher status are more probable to have less children as they are more focused on the career.

Option D is also not correct as with more money you have easier access to everything.

*Who among the famous Filipino or Foreign Scientists you would like to emulate and why? (Write your
answer in 50-75 words only)

Science ​

Answers

Answer with Explanation:

Among all the scientists in the world, it is Thomas Edison whom I'd like to emulate. His invention of the light bulb is phenomenal because I consider it as one of the greatest invention in the history of mankind. Although he had a hearing problem, he managed to focus on his invention. As a businessman, he was always hardworking, even at a young age, which is truly admirable.

Thomas Edison is the scientist most people aspire to be like among all others. The light bulb he created is incredible because, in my opinion, it is one of the greatest inventions in human history.

What is the most things Thomas Edison famous for?

One of history's most famous and productive inventors, Thomas Alva Edison, made a tremendous impact on modern life by developing the phonograph, motion picture camera, incandescent light bulb, and telephone in addition to improving the telegraph and telephony.

He struggled with his hearing, yet he was able to concentrate on his innovation. He was always a businessman who put in a lot of effort, even when he was young, which is absolutely admirable.

Thus, Thomas Edison is the scientist most people aspire to be like among all others.

For more details about Thomas Edison, click here:

https://brainly.com/question/5529521

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7) A waterfall is an example of which component of Places
a) Body of water
b) Natural wonder
Climate
d) Both A and B

Answers

Answer:

d)

Explanation:

* What factors - such as latitude, elevation, and mountain barriers - affect the
climate of asia?

Answers

Answer:

Asia is the largest continent present in the globe. Factors which affect Asia climate are the latitude and mountain barrier. Latitude acts as a climatic control because the vertical rays of the sun, which are the most intense and heat producing, strike only on the tropics. North and south of the tropical zone are less intense insulated as , the energy received from the sun is less received per unit of the earth surface.  This causes temperatures in the tropics to be cooler and more seasonal as it approaches the poles from the tropic region. Mountain barriers also affect climate by forcing the moisture bearing winds to rise and release precipitation on the windward side of the mountains. The leeward side of mountain barriers usually has an arid climate.  As the descending air on the leeward side is being compressed and therefore, it is warmer.  This condition of the air to be warmer cause the air to be more receptive to absorbing moisture rather than releasing it . As precipitation , the likelihood of precipitation is increased when air is cooled, not when it is warmed. Hence Asia is a continent of various climates and culture.

why do the stars of the northern sky appear to circle around the polaris

Answers

Polaris is located about 1 degree off to the side of the north celestial pole, so Polaris does move a little, tracing a very small arc in the night sky, around which the other visible stars make wider circles.

Answer:

The earth is rotating on its axis.

HURRY 50 POINTS!!!

1) How is population change modeled and explained?

2) Why and how do governments promote population change?

3) What are the effects of population change on resources and the environment?

Answers

Answer:

1.  Population change is modeled and explained in a model that shows natural growth or anexponential growth model. This comes along with the changes in population size and agedistribution within the population

2.  Governments may promote population change in many ways. One way is to limit the number of children citizens can have. An example of this was China’s One-Child Policy, a law where the Han Chinese (primarily living in urban areas) cannot have more than one child. This drastically affected China’s population as now there is a huge male and elderly population. Another way is to push for the usage of contraception. In Iran, contraceptives have been used more and have been endorsed by the government to limit an unbalanced population.

3. One environmental effect of human population growth is the problem of global warming. Some people are scared  that global warming will lead to rising sea levels and extreme weather conditions in the future. another is deforestation,  in order to support the growing population, forests are being destroyed at an alarming rate.

What caused the Pilgrims to settle in New England?
A. They wanted to escape poverty and starvation.
B. They wanted to take part in the fur trade.
C. They wanted to practice their religion freely.
0
D. They wanted to convert Indians to Christianity.

Answers

The answer is D they wanted to covert indians to christianity

How is population modeled and explained?

Why and how do governments promote population change?

What are the effects of population change on resources and the environment?

Answers

Answer:

1. Population change is modeled and explained in a model that shows natural growth or anexponential growth model. This comes along with the changes in population size and agedistribution within the population

2.  Governments may promote population change in many ways. One way is to limit the number of children citizens can have. An example of this was China’s One-Child Policy, a law where the Han Chinese (primarily living in urban areas) cannot have more than one child. This drastically affected China’s population as now there is a huge male and elderly population. Another way is to push for the usage of contraception. In Iran, contraceptives have been used more and have been endorsed by the government to limit an unbalanced population.

3. One environmental effect of human population growth is the problem of global warming. Some people are scared  that global warming will lead to rising sea levels and extreme weather conditions in the future. another is deforestation,  in order to support the growing population, forests are being destroyed at an alarming rate.

PLEASE HELP BY TUESDAY ILL GIVE BRAINLIEST AWARD AND 60 POINTS. EARTHQUAKE QUESTION.
Earthquakes
1. Read the cards and put them in the right order so that they correctly explain
what causes an earthquake. (you can number the statements).
The tectonic plate suddenly moves
As the surface settles back down there will be smaller
earthquakes known as aftershocks.
Energy is released as 'seismic waves' travel along the surface
away from the epicentre (point on the surface above the focus)
The rock breaks along a weak point (fault line) when the
pressure is released. Where the rock breaks is the 'focus'
Tectonic plates are locked together by friction
This is an earthquake. The Earth's surface shakes, causing 'tremors'
Pressure (strain energy) builds up due to movement in the mantle

the picture is clearer i’ll give brainliest award and the 60 points. i need this by tuesday please. thanks.

Answers

Answer:

Explanation:

you already answer what do i need to do?

Which is the best tourism place in India?​

Answers

Taj Mahal

It is very famous place in India . It is also listed in one of the wonder of the world.

Thank you ☺️☺️

12. How does farming affect urbanization?

Answers

Urban growth is more likely to reduce arable land availability if it takes place in this zone, entails fewer rural people as well as more urban people, it may reduce rural building and so, in part, counteract the effects of urbanization expanding over cultivated land.

#15. What is the Equator?
O imaginary latitude line that runs left and right (east and west)
imaginary longitude line that runs up and down (north and south)
Oline dividing the world into 4 hemispheres

Answers

Answer:

A: imaginary latitude line that runs left and right (east and west)

Explanation:

The equator splits the world into 2 halves; an upper half and a lower half.

The annual number of female deaths related to pregnancy per 100,000 live births is called

Answers

Answer:

maternal mortality ratio

Explanation:

maternal mortality ratio

Annual Deathbed is the season to start my year

Which of the following elements identifies the location of the map?

Answers

Answer:

Tittle

Explanation:

Tittle because it tell us what the map is about, like the position of Canada.

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dean ambrose is a theatre actor. but he is not just any other actor, he is a Determine whether the following statement is true or false. The y-coordinate of the vertex of f(x) = - X + 4x + 3 is f(2). Select the correct choice below and fill in the answer box to complete your choice. A. The statement is true because the x-intercept of the parabola is B. The statement is false because the y-coordinate of the vertex is f(()). C. The statement is true because the x-coordinate of the vertex is 4 D. The statement is false because the y-coordinate of the vertex is 50 mL of 2.2 M HCl is combined with 50 mL of 2.0 M NaOH in a coffee-cupcalorimeter. The temperature of the solution increases 13.4C. Assume thecalorimeter is a perfect insulator and the mixture has a specific heat capacity identicalto pure water (4.184 wc).Calculate the heat change from the chemical reaction (in units of kJ). (Pay attention tosign conventions and do not write the units in your typed answer.) idk what to do helppp? In FGH, FH FG. Which angles are congruent? Select both angles that are congruent Use the drop-down menus to choose the conjunctive adverb or coordinating conjunction that makes each sentence correct.Arielle wants to get a pet; (ANSWER: HOWEVER) , she is allergic to both cats and dogs.Marc wants to play tennis, (ANSWER: BUT) Josef wants to go for a hike.First, mix the eggs and milk; (ANSWER: THEN) , slowly add the flour. Just give me a good riddle, that is complex with an answer. The standard unit for measurement for volume is In what ways is it useful to develop an algorithm for adding and subtracting rational numbers? How are hypotheses different from theories? Marina is heating a solution in her chemistry lab. The temperature of thesolution starts at 20C. She turns on the burner and finds that the solution'stemperature increases by 3C every minute. This graph shows thetemperature change. Sun Li is 18 years old.Her brother Zeb is 13 years old.How many years older is Sun Li than Zeb?years I NEED HELP WITH THIS!!and IT'S IS NOT C What government organization was created in 1887 to regulate business across state lines as of December 31, 2020, was as follows: Common stock, par value $2; authorized 20,000 shares; issued and outstanding 10,000 shares $ 20,000 Paid-in capital in excess of par 30,000 Retained earnings 85,000 Total Stockholders' Equity $135,000 On March 1, 2021, the board of directors declared a 15% stock dividend, and accordingly 1,500 additional shares were issued. On March 1, 2021, the fair value of the stock was $6 per share. For the two months ended February 28, 2021, Firm ABC sustained a net loss of $15,000. What amount should Firm ABC report as retained earnings as of March 1, 2021 Help!!! Need Anwser!!! You design toys for a toy company. Your boss wants you to hook up the lights in the toy car you are working on in the cheapest way possible, without consideration of the quality of the toy. Which circuit should you use if you want to save money by using fewer parts? Why would this circuit be cheaper? The cost of renting a canoe is $5.25, plus $0.50 per hour for the time that the canoe is out. Which equation could be used to find C, the cost in dollars for using the canoe for H hours? WILL GIVE BRAINILY !!1!1!1!1 What are 3-5 reasons why people would choose to be a)vegan, b) vegetarian, c) eat local food only? An integer between -5 and -6