the half life of radium-226 is 1600 years. after how many half-lives would 25% of the radium-226 remain?

Answers

Answer 1

Answer:

400

Explanation:


Related Questions

how can accessibility influence your career or study choice

Answers

Accessibility could influence your career or study choice greatly.

IGCSE OR SAT DIPLOMA?

Answers

Answer:

sat

Explanation:

Dorwa ieowkwkoskdjwkwkee

in order for a survey to accurately generalize the entire population, the survey must

Answers

In order for a survey to accurately generalize the entire population, the survey MUST select participants in a RANDOM mode, and sampled individuals must have an EQUAL LIKELIHOOD of being chosen.

Random sampling refers to the sampling methodology by which each item or element of the target population exhibits the same probability of being included in the sample.

Random sampling represents the most reliable methodology of probability sampling.

Because samples are selected in a random mode, any research using a random sampling approach has high internal and external validity.

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according to maslow, employment is an example of which type of need?

Answers

Employment can be considered as example of safety and security, which are types of human needs according to Maslow.

Maslow theory is about human Physiological needs. Physiological needs  can be regarded as biological requirements that are very Essential for human survival.

These could be food, drink, shelter as well as  clothing.

However, there are higher needs that needed to be met for human survive in term of safety and security, and employment is part of it.

Employment as a needs helps man to cater for other needs such as shelter, foods, as easy living.

Therefore, Maslow let us know that man Physiological needs are very essential for his security.

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What does the underlined word mean in the following sentence? La abuela se rompió un brazo. broke her arm broke her leg broke her nose broke her finger

Answers

Answer:broke her arm.

Explanation:

The meaning of the underlined word "rompió un brazo" is;

A: broke her arm.

The underlined word in the sentence is; "rompió un brazo".

Let us analyze each of the options;

Option D; Broke her finger; In spanish this is called; rompió un dedo

Option C; broke her nose; In spanish this is called; se rompió la nariz

Option B; broke her leg; In spanish, this is called; se rompió la pierna

Option A: broke her arm; In spanish, this is called; rompió un brazo"

Thus, option A is the correct answer.

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a small amount of sodium hydroxide is added to water. when the chemical reaction reaches equilibrium, the ph is 12. which statement and conclusion about sodium hydroxide is correct?

Answers

The correct statement and conclusion about sodium hydroxide (NaOH) is: The negative log of the concentration of [tex]OH^-[/tex] ions is 12, so Sodium hydroxide is a strong base.

In Chemistry, pH literally means the power of hydrogen ions and it can be defined as a measure of the molar concentration of hydrogen ions in a particular solution, thereby, specifying the following;

The acidity of a chemical solution.The neutrality of a chemical solution.The basicity (alkanility) of a chemical solution.

On a related note, a pH scale is a scale that is used to measure the concentration of hydrogen ions in both acidic and basic (alkaline) solutions.

Generally, a pH scale is calibrated with a standard measurement that ranges from 0 to 14.

On a pH scale, a solution with a pH of 7 is neutral, a solution with a pH below 7 is acidic and a solution is considered to be basic (alkaline) when its pH is above 7.

In this experiment, a small amount of sodium hydroxide is added to water, to give a pH of 12 when the chemical reaction reaches equilibrium.

Hence, the negative log of the concentration of [tex]OH^-[/tex] ions is 12, so Sodium hydroxide is a strong base.

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Answer:

The negative log of the concentration of OH– ions is 2. Sodium hydroxide is a strong base.

generally reduces the number of hurricanes formed in the atlantic ocean results in a more active tornado season can lead to crop damage and landslides in california

Answers

Based on meteorological information El Nino generally reduces the number of hurricanes formed in the Atlantic ocean.

This is because the impact of El Nino quells the Atlantic hurricane effect. This is done by raising the quantity of sinking motion and improving atmospheric resilience.

On the other hand, La Nina results in a more active tornado season.

This is because the La Nina effect pushes the jet stream to move towards the north, and subsequently, this effect reduces around the Pacific side.

Excessive rainfall can lead to crop damage and landslides in California.

This is because continuous rainfall at a certain level in California leads to erosion which can damage crops. Subsequently, continuous rainfall of about two weeks can turn erosion into landslides in California, particularly the southern side.

Hence, in this case, it is considered that different climatic conditions affect the physical environment of humans.

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a motorist should know that he she is entering a work zone because of

Answers

There are many road signs or cop car blocking or even construction workers or vehicles

Who led the Protestant Reformation? a. Martin Lawrence b. Martin Luther II c. Martin Luthley d. Martin Luther Please select the best answer from the choices provided A B C D

Answers

Answer:

D. martin luther

Explanation:

was an Augustinian monk and university lecturer in wittenberg when he composed "95 theses" which protested the popea sale of reprieve

source(s)

https://www.britannica.com/biography/Martin-Luther

The Protestant Reformation was led by Martin Luther II. The correct option is b.

What is Protestant Reformation?

In the 1500s, the Protestant Reformation was indeed a religious progressive movement that drifted through Europe.

It resulted in the formation of a branch of Christianity known as Protestantism, a term used to refer to the many religious groups that split from the Roman Catholic Church due to doctrine differences.

The Reformation is said to have begun on October 31, 1517, when Martin Luther posted his Ninety-five Theses on the door of the Castle Church in Wittenberg, Germany. Find out more about Luther's 95 Theses.

Martin Luther, a German instructor and hermit, started the Protestant Reformation in 1517 by challenging the Catholic Church's teachings.

In the 1500s, the Protestant Reformation was a religious reform movement that swept through Europe.

Thus, the correct option is b.

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a user is implementing security on a small office network. which two actions would provide the minimum security requirements for this network? (choose two.)

Answers

Implementation of firewall

installation of anti-virus software

jason and cora are riding on a roller coaster, which is producing high levels of arousal. they attribute their aroused state to romantic feelings for each other and feel they are falling in love. which theory would be best able to account for this outcome?

Answers

Ghhbfgbjkkgghnfgbbe the Hasmonean funny snack smells flank

If software can be affected by viruses, what do you think hardware can be affected by

Answers

Answer:

An easy way for a virus to damage hardware is by disrupting the normal operation of a computer’s power management or thermal management. For instance, the fans in laptops can be controlled through software. Disabling the fans can destroy the computer.

Explanation:

what are the expected tasks you have successfully accomplished

Answers

Answer:

absolutely nothing

Explanation:

Assume that you pay $2,849.84 in state property taxes every year. If your property has an assessed value of $41,302, what is your state’s property tax rate? a. 0.077 b. 0.032 c. 0.014 d. 0.069 Please select the best answer from the choices provided A B C D

Answers

The state property tax rate is the ratio of the tax amount and the total amount earned which is 0.069

Amount paid in property tax = $2849.84

Total property value = $41,302

The tax rate of it's property can be calculated thus :

(Amount paid ÷ total value) × 100%

Tax rate = (2849.84 ÷ 41302) × 100%

Tax rate = 0.06900 × 100%

Tax rate = 6.9%

Therefore, the state property tax rate paid is 0.069

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Answer:

D

Explanation:

Jamaal spent x minutes today practicing his guitar and y minutes today on homework. If the total time he spent on both is 45 minutes or more, which inequality best represents his practice time? x y < 45 x y > 45 x y ≤ 45 x y ≥ 45

Answers

Answer:

xy ≥ 45

Explanation:

The product of x and y will be 45 or more than 45 so the above answer represent and can be read as the product of x and y is greater than or equal to 45.

So the answer is x y ≥ 45

Kindly mark it branliest if the answer is little bit satisfying.

Answer:

B

Explanation:

Edge2023

Based on her skills and interests, which careers would Coretta enjoy? Check all that apply. librarian professional hockey player musician zoologist English/French interpreter business owner electrical engineer

Answers

Based on her skills and interests, The careers that Coretta would enjoy are:

LiberianMusicianZoologistBusiness owner

The full question is below:

Coretta is thinking about which careers she would enjoy. She considers her personal skills and interests. She enjoys reading and animals. She always likes to take charge of situations and find solutions to problems, which means she could make a good leader. She plays the flute very well. Based on her skills and interests, which careers would Coretta enjoy? Check all that apply.

librarian

professional hockey player

musician

zoologist

English/French interpreter

business owner

electrical engineer

Humans often chooses career path from different alternative that they have. It is choose mostly based on Education, skills, hobbies etc.

Career paths is simply known as ways or paths taken by humans through an industry or one's path through an organization.

An example, if your goal is to become a top Singer, you have to be able to sing, have a good voice and practice to become top Singer.

Conclusively, some career paths often need credentials and as such an individual have to be thoroughly trained to be able to become one such as teaching.

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Answer:

Liberian

Musician

Zoologist

Business owner

Explanation:

identify the compounds that engage in hydrogen bonding as pure liquids.

Answers

Answer:

I believe the compounds that engage hydrogen band in this case are 1-amino-propane,pentanol HF. Hydrogen bond is a type is electrostatic attraction between a partially electropositive hydrogen atom and highly electronegative atoms such as nitrogen, oxygen and fluorine.

Explanation:

。◕‿◕。

what are the challenges of planning for life after high school

Answers

Answer:

it all depends on if you want to get a job or start your own business and how sucessful you will be with your diploma and if you go to college

Explanation:

Although Portuguese, I led the Spanish expedition that was the first to circumnavigate the Earth. Who was I? Question 3 options: Pedro Cabral Vasco da Gama Ferdinand Magellan

Answers

Answer:

Who is Ferdinand Magellan

Ferdinand Magellan who was the first sailor to circumnavigate the Earth.

Have a happy day! <3Miss Hawaii

Answer:

Ferdinand Magella

Explanation:

In 2012, the Office of Management and Budget reported calculations of cost and benefits of regulations by major government agencies. According to the chart, which regulatory agency provides the greatest monetary benefit to the public? According to the chart, which regulatory agency had the fewest regulations studied?

Answers

Answer:

the person above me is correct

Explanation:

the answer for number 14 is A, C, D

the answer for number 16 is A, C, D

Answer:EPA and USD

Explanation:

cuz those are the answers

A 6-column table with 4 rows has some of the column labels filled in. The column labels are: blank, Date, blank, amount debited, amount credited, blank. This is a table that could be used to maintain a record of account transactions. It is similar to what is found in a checkbook ledger. Some of its column headings are missing. How should these columns be labeled? Balance, Transaction Code, Description Check Number, Description, Balance Transaction Code, Balance, Notes Description, Check Number, Balance

Answers

Answer:

Check Number, Description, Balance

Explanation:

I think this is the right answer

Answer:

Check Number, Description, Balance so technically its B.

Explanation:

Sorry this is LATE Just did this in my unit test and got it right.

EDGE 2022

Saving money for a house is a . Saving money for a rainy day or an emergency is a . Saving money for retirement is a .

Answers

Answer:

Saving money for a house is a

✔ long-term goal

.

Saving money for a rainy day or an emergency is a

short-term goal

.

Saving money for retirement is a

✔ long-term goal

.

Explanation:

Saving money for a house is a

Long term goal

Saving money for a rainy day or an emergency is a

Short term goal

Saving money for retirement is a

Long term goal

Goals are those objectives which a person wants to achieve in a particular time period.

As a result of this, we can see that there are short and long term goals which are goals that are expected to be fulfilled in a brief and longer period of time.

This is because, when a person is saving money for a house, it is likely to be for a long time, because the cost of buying a house is high, however, saving for an emergency can be considered a short term goal because an emergency can occur at any time.

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how long will it take the satellite with mass 1500 kg

Answers

Answer:

1.51 Seconds is the answer

the mean weight of trucks traveling on a particular section of i-475 is not known. a state highway inspector needs an estimate of the population mean. he selects and weighs a random sample of 81 trucks and finds the mean weight is 15.8 tons. the population standard deviation is 3.8 tons. what is the 95% confidence interval (upper limit) for the population mean?

Answers

Answer:

14.7 and 16.9

what would be the outcome of the processes shown above if the mrna never moved outside of the nucleus?

Answers

Answer:See below

Explanation:

The process of protein synthesis initiates with the transcription process in the nucleus and continues with the translation process in the cytoplasm. If the mRNA never left the nucleus, the translation would not be possible.

-------------------------------------

The protein synthesis process involves transcription and translation.

Transcription:

Transcription is the copying process of the DNA section for the desired protein occurs.

It happens in the nucleus, where the template DNI strand is read in direction 3´→ 5´ to build the mRNA molecule in direction 5´→ 3´.

Once the transcription is over, the new mRNA molecule leaves the nucleus and goes to the cytoplasm.

Translation:

Translation occurs in the cytoplasm when mRNA meets a ribosome.

rRNA and tRNA read mRNA in the direction 5´→ 3´ to build the protein.

While the ribosome reads mRNA strain from its 5´ extreme to 3´, tRNA adds the correct amino acids to build the polypeptide.

Protein growth initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA.

If the mRNA does not move outside of the nucleus, the translation process is not possible. Only transcription would occur, but no translation. Protein synthesis could not be accomplished.

the addition problem 15 + 24 can also be expressed as which of the following?

Answers

Answer:

Explanation:

7654

What is Uruguay's capital? Uruguay City Montevideo Santiago La Basura

Answers

Answer:

Montevideo

Explanation: i just know because i paid attention to the video..

Answer:

montevideo

Example:

Which option correctly describes the pattern of reactivity and electronegativity in nonmetals?

Answers

Answer:

Both reactivity and electronegativity decrease down a group.

I'm assuming this is multiple choice...

Explanation:

Rewrite the following sentence using a direct object pronoun. Nosotros comemos las manzanas. Nosotros los comemos. Nosotros las comemos. Nosotros se comemos. Nosotros la comemos.

Answers

Answer:

Nosotros las comemos.

Explanation:

Nosotros las comemos is the sentence using a direct object pronoun. Hence, option C is correct.

What is direct object pronoun?

For instance, you would say I while referring to oneself as the sentence's subject, but me when referring to yourself as the sentence's object.

Pronouns, clauses, phrases, and nouns can all be used as direct objects. Finding the direct object, if there is one, is simple if you can recognize the subject and the verb in a statement.

The thing that the verb is acting on is known as a direct object. The word "vehicle" is a direct object in the sentence "He sold his car," for instance. As in "The man gave his wife a necklace," the indirect object is the person who receives the direct object. The direct object is "necklace," and the indirect object is "wife."

Thus, option C is correct.

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which of the following is most likely the main claim that the writer is planning to make in the new version of the passage?

Answers

People often have different view. when it comes to writers. There is no much difference. Opinion and views differs from person to person. The writer's main claim or thesis in the new version of the passage is Da Vinci was a great artist because he had exotropia.

Exotropia is simply known to be a type of defect where the eyes are not align thag is one eye pushes outward. This form of outward pushing or deviation may be constant or intermittent.

The writer of the passage, claimed that Da Vinci's physical defect of exotropia was one of the main reasons for his success.

Conclusively, Humans can based their beliefs on what they see, know or studied. the writer choose to base the success of Da Vinci on his physical appearance.

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The full passage is below

(1) For centuries, art scholars have studied the renowned works of Leonardo da Vinci, the Renaissance artist, pondering how he created three-dimensional figures with such depth on flat canvases. (2) If da Vinci did have exotropia, in which an eye turns outward, he would not have been the only artist in history with that condition.

(3) Christopher Tyler, a visual neuroscientist at City University of London, noticed a pattern in da Vinci’s portraits and in works depicting the great artist. (4) While few self-portraits of da Vinci exist, Tyler argues that many of da Vinci’s portraits reflect his appearance. (5) As the great artist himself said, the soul “guides the painter’s arm and makes him reproduce himself, since it appears to the soul that this is the best way to represent a human being.”

(6) To test his theory that da Vinci had exotropia, Tyler studied the eye alignments of the subjects of six pieces of art that purportedly depict the Renaissance artist himself, including da Vinci’s Vitruvian Man and Salvator Mundi and Andrea del Verrocchio’s sculpture David. (7) The results confirmed Tyler’s suspicions: da Vinci likely had exotropia, with one eye turning out at -10.3 degrees.

(8) Tyler’s findings, which he published in JAMA Ophthalmology, created a stir in both the art and science communities. (9) Only about 1 percent of the population has exotropia, yet previous studies have suggested that other famous artists—like Rembrandt, Picasso, and Degas—had it as well, which indicates that the eye condition was more common in centuries past than it is now. (10) Tyler believes that da Vinci’s condition was intermittent—that is, his eye drifted out of alignment when he was relaxed, but when he focused, it would realign. (11) If Tyler is right and da Vinci could control his exotropia, then the artist could switch from 2-D to 3-D vision, enhancing his ability to accurately capture three-dimensional figures on a two-dimensional canvas.

The writer is working on a revision of the passage and has written the following thesis statement for it.

Based on the evidence from Tyler’s studies, it is clear that this condition was the primary reason for da Vinci’s success.

Which of the following is most likely the main claim that the writer is planning to make in the new version of the passage?

A The only way for an artist to be successful is to have exotropia.

B. Da Vinci was more successful as an artist than others who also had exotropia.

C. Studying just a few works of art can provide compelling information about an artist’s physical conditions.

D. The only way to fully understand an artist’s work is to study the artist’s physical conditions.

E. Da Vinci was a great artist because he had exotropia

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Xavier, Yosef & Zeke are three brothers. All together they can do 56 push-ups in 3 minutes. Xavier does as many as Yosef and Zeke combined. Zeke does two less than half as many as Yosef does. How many push-ups does Yosef do?A. 12B. 28C. 8D. 6E. 20 What helped cause the Mexican Revolution? Select ALL that apply. A. Mexican citizens living in poverty B. the country being a dictatorship for more than 30 years C. railroads and factories being owned by investors within Mexico D. Mexico becoming less industrialized To reduce the pressure in the fuel line the forklift operator should in which african country can you find this red dune desert? What is the connotation of the movie Forrest Gump? helpppppppppppppppppppp Using the standardized NaOH solution in the previousquestion, the titration of 5.00 mL of vinegar required42.25 mL of NaOH. What is the % of acetic acid in thevinegar? Previous standardized NaOH solution = 0.098 A 3.90 L sealed vessel under vacuum is filled with 6.40 g of fluorine gas. What is the pressure (in kPa) of the vessel at 25.0 C ? estaba previsto destinar 3/14 de partes de una finca a plazas de aparcamiento pero finalmente han destinado 3/4 de lo previsto a zonas ajardinadas que fraccion de la finca se ha destinado a plazas de aparcamiento hacer una historia sobre corriendo con 10 verbos en pasado y subrayar los verbos por favor ayuda Simplify each expression.(a^2b^-3/a^-2b^2)2 PLS HELP! GIVING BRAINLIEST!Given g(x)=2x+4, find: g(4)PLS SHOW WORK !! PLEASE HELP WITH THESE TWO QUESTIONS I need the answer ASAP Solve for x.5x2(x+1)=1/4 Enter your answer as a fraction in simplest form in the box.x = what is the effect in climate due to the distance from sea? 1. A severe weather watch means which of the following?* ((1 Point)The conditions are right for severe weather, but it is not occurring yet.Severe weather is occurringSevere weather has passed through and it is now safe to go outsideIt is the season during which type of severe weather concerned occurs. Which statements describe the solar system ? Check all that apply. Our material handlers make $15 per hour, and it takes them about 15 minutes to complete this process. How much is our handling cost? A box collides with a ball as shown in the diagram below. After the collision, whatwill the final momentum of the ball be?BEFORE COLLISIONAFTER COLLISION15 kgm/s3 kgm/s5 kgm/s_kgm/sO 18 kg * m/sO 5 kg * m/sO 10 kg * m/sO 13 kg * m/s