A bicycle wheel of known rotational inertia is free to rotate about its central axis. With the wheel initially at rest, a student wraps a string around the wheel and pulls the string with a spring scale, causing the wheel to rotate. The student records the tension in the string and the time for which the string was pulled. Without measuring the wheel’s final angular speed, can the student find the magnitude of the wheel’s final angular momentum, and what is a correct explanation?.

Answers

Answer 1

Yes but the student also needs to measure the wheel's radius to calculate the torque exerted on the wheel.

How to calculate final angular momentum?

Mathematically, angular momentum is calculated by using any of these formulas:

L = Iω

ΔL = τΔt

Where:

L is the angular momentum.I is the moment of inertia or rotational inertia.ω is the angular speed.τ is the torque.Δt is the change in time.ΔL is the change in angular momentum.

Since the torque wasn't provided, the student would have to measure the radius (r) of the wheel and multiply it by the tension (T) in the wheel. Thus, this is given by:

τ = rFsinθ = rT

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Related Questions

The Lord Jesus Christ and other believers spoke of and referred to the three-fold division of the Hebrew Scriptures. True False

Answers

Answer:True

Explanation:

The _______________________ is a curved structure located within each temporal lobe, responsible for the formation of long-term memories and the storage of memory for location of objects

Answers

The answer will be Hippocampus

A long-term client has recently indicated that she wants to start training for a fitness competition and, due to her competitive nature, she indicates that she wants to win. Which type of motivation is driving her?

Answers

Answer:

intrinsic

Explanation:

If she is doing it out of her competitive nature and not due to external factors, it is most likely going to be a intrinsic motivation, not extrinsic.

A long-term client has recently indicated that she wants to start training for a fitness competition and, due to her competitive nature, she indicates that she wants to win. The motivation which is driving her is extrinsic motivation.

What is extrinsic motivation?

Extrinsic motivation uses rewards or incentives like praise, fame, or money as a motivation for specific activities. It is based on external factors and may be less effective long term than intrinsic motivation.

Extrinsic motivation is a type of operant conditioning, which is a form of behaviour modification. It uses rewards or punishments to increase or decrease the likelihood of specific behaviours recurring. Being paid to do a job is an example of extrinsic motivation. We may enjoy spending our day doing something other than work, but we're motivated to go to work because we need a paycheck to pay our bills.

Extrinsic motivation doesn’t always have a tangible reward.

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Nora's very first lines and movements in Act I of A Doll's House, such as instructing Helene to hide the tree, eating the macaroons, and stealing over to listen at her husband's door, hint that she may be Question 10 options: deceptive respectful careless selfish

Answers

The best inference that can be made about the actions of Nora from the description is that she might be deceptive.

What is Characterization?

This refers to the role of a character in a given story and how their actions and thoughts are used to develop their characters.

Hence, we can see that Nora is described as asking Helene to hide the tree, and going over to eavesdrop on her husband shows that she might be a deceptive person.

Therefore, the correct answer is option A.

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Which is an example of a power delegated to congress in the constitution?.

Answers

Answer:

The powers that are delegated to Congress, and also the powers denied to Congress are all discussed in Article II of the Constitution. give brainliest :)

Explanation:

When driving on snow covered roads, you should reduce your vehicles speed by ____________ to reduce the risk of collision.

Answers

Answer:

10 mph or 12 kmph

Explanation:

why do scientists believe that people traveled from africa through jebel faya as well as egypt

Answers

Answer:“At Jebel Faya, the ages reveal a fascinating picture in which modern humans migrated out of Africa much earlier than previously thought, helped by global fluctuations in sea-level and climate change in the Arabian Peninsula.”

another thing: Hans-Peter Uerpmann, published and article about their findings in the magazine Science under the title, "The Southern Route 'Out of Africa': Evidence for an Early Expansion of Modern Humans into Arabia." They explained that they have found 125,000 year old hand axes of stone that look like early modern human tools ...

another thing:Researchers have uncovered stone tools in the Arabian peninsula that they say were made by modern humans about 125,000 years ago. The tools were unearthed at the site of Jebel Faya in the United Arab Emirates, a team reports in the journal Science.

The humans were migrated from Africa to Egypt and Jebel Faya 50,000 years earlier. Some stone tools axes, leaf-shaped blades found from northeast of Jebel Faya. The early humans make their journey possibly by foot.

What is migration?

The change in climate is one of the most common reason for African humans to left Africa and settle in the land would be filled with rivers, lakes and vegetation.  

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What consumer protection agency is known by the acronym ftc? a. federation of traders and consumers b. foreign tariff committee c. federal trade commission d. fair trade community please select the best answer from the choices provided a b c d

Answers

The consumer protection agency that is known by the acronym ftc is federal trade commission .

What is federal trade commission ?

federal trade commission serves as the agency that protect consumers and competition by preventing anticompetitive and unfair business practices

This is been done by enacting different law that can curb this practices.

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Gossip during work is ______. a. unavoidable b. entertaining c. distasteful d. proper please select the best answer from the choices provided a b c d

Answers

Gossip is idle discussion or gossip about other people's personal or private lives, this act is also known as dishing or tattling. It is unavoidable, while doing a  work.

Why gossip is unavoidable during the work?

When any person gossip, then he is showing the audience that he is not trustworthy to that work, that the person is capable of being spiteful and willing to propagate lies. It also conveys the person's insecurity to others.

It should be kept in mind that the audience is probably aware that while anyone giggling at someone else now, it could be them in the same location tomorrow.

Therefore, option a is correct.

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Answer:

.

Explanation:

The most common form of political participation in the united states is.

Answers

The most common form of political participation in the united states is voting.

What is voting?

Voting is a way for a group, like a meeting or an electorate, to decide or express itself collectively. Typically, voting occurs after talks, debates, or election campaigns. Voting is the primary method used in democracies to choose leaders. Constituents of an elected person are referred to as that representative's "representatives," while voters are referred to as those constituents who cast a ballot for that representative. There are numerous methods for gathering votes, but only those that support proportional representation can be used in elections. While many voting methods can also be used for decision-making, this is not always the case.

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One of the primary characteristics of autism spectrum disorder is ________. A. Bed-wetting B. Difficulty relating to others C. Intense and inappropriate interest in others D. Short attention span

Answers

Difficulty relating to others is one of the main characteristics of autism spectrum disorder.

What is Autism Spectrum Disorder?

It corresponds to an atypical neurodevelopmental condition with behavioral manifestations that influence social interaction and communication, in addition to generating repetitive behavior patterns and restricted interests.

Therefore, it is essential that an individual identified with autism spectrum disorder is properly monitored by professionals who will assist in the search for the ideal treatment for the patient.

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A speaker is more likely to persuade audience members whose position differs _______ from the speaker's.

Answers

In a presentation, the speaker will persuade audience members whose position differs moderately from the speaker's.

Who are audience in a presentation?

The audience means the party in a presentation that listen to the speaker.

Most time, the speaker will want to persuade audience members whose position differs moderately from the speaker's to maintain equality and prevent disrespect of position.

Therefore, the word "moderately" is correct.

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Why has the united nations sometimes proved ineffective?.

Answers

Answer:

It is composed of many independent nations that often disagree on goals and policies.

(09.01 LC)
Which of these is a service?
O Bubble kit
O Pizza delivery
O Resort stay
O Star Wars toy

Answers

The answer choice that contains a service from the list of available options is option B. Pizza Delivery

What is a Service?

This refers to the work which a person does for another in exchange for money or any other value-based thing.

Hence, we can see that from the given options, options A, C, and D are all goods or products which a person can buy, but pizza delivery is a service that a person has to come and give a client at their preferred location.

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Examine the dialogue in lines 1167-1239 that describes the aftermath of mr.van theft. Explain the effect of this event and how it propels the action of the story

Answers

In this event, what is happening is that Mr. Van Daan is caught stealing food and it appears that everyone turns on him. This impacts the rest of the story because it results in his family being forced to move out after Mrs. Frank states that she's had enough of dealing with their family.

The principle of liability stating that an employer is liable for a physical tort committed by an employee acting within the scope of employment and a nonphysical tort of an employee acting with authority is called.

Answers

The principle of liability stating that an employer is liable for a physical tort committed by an employee acting within the scope of employment and a nonphysical tort of an employee acting with authority is called Respondeat superior.

What is Respondeat superior ?

Respondeat superior refers to the doctrine that a party is responsible for acts of their agents.

For instance, this doctrin stipulates that an employer is liable for acts of employees performed within the course of their employment.

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In the past decade, the number of gay couples with children in the United States has __________. a. halved b. tripled c. quadrupled d. doubled

Answers

In the past decade, the number of gay couples with children in the United States has doubled.

Who is a Gay?

This is referred to an individual who is homose×ual and it involves the marriage between people of the same gender.

The number of gay couples with children in the United States has doubled from a percentage of 8 to 19 percent through them embracing adoption of kids.

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Professor Aviv believes that the general principles of learning apply to mostly all learning situations and across all species. Professor Aviv likely supports the traditional _____ perspective.

Answers

In the behavioral test method, the test behavior itself is of interest as a sample representing human behavior in that situation. Professor Aviv likely supports the traditional behavior perspective.

What is the traditional behavior perspective?

The traditional method of testing plays a major role in behavior and sees it as especially important as a symbol or association of elements or regions of origin.

For example, getting a new car will encourage a teenager to finish high school.

Therefore, Professor Aviv likely supports the traditional behavior perspective.

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Researchers currently suggest that social media should only be used _____ until widely accepted ethical guidelines are developed.

Answers

The thing which researchers suggest about social media is that it should be used with participants who give consent until ethical measures are put in place.

What is Social Media Abuse?

This refers to the online hate and other negative things that are gotten from the online space of social media from other users towards another.

Hence, we can see that from the given question, there is the suggestion by researchers that due to these online abuses, social media usage should be regulated and thus only be used with participants who give consent until widely accepted ethical guidelines are developed.

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Which of the following best describes the role of the federal state in a country's political organization?

Answers

The statement that best describe the federal state in a country's political organisation is it act as a single centralised economy for a collection of subnation states allied for a common purpose

What federal state?

Federal state is a political organisation that comprises of Union or associations of states, jurisdiction or regions which are partially governed and are under the federal government which come together for a common purpose.

Therefore, The statement that best describe the federal state in a country's political organisation is it act as a single centralised economy for a collection of subnation states allied for a common purpose.

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Why did Alexander Hamilton think a national bank would strengthen the central
government?

A The bank would help provide stability for the U.S. economy.

B) The bank would create a monopoly that would eliminate state banks.

C)The bank would encourage foreign competition for manufactured goods.

D The bank would have the power to regulate interstate commerce.

Answers

Alexander Hamilton think a national bank would strengthen the central government as the bank would have the power to regulate interstate commerce.

He argued that a national bank would make it easier for the federal government to pay taxes so urgently needed as a source of income. It can provide people with a single currency and facilitate trade and industry.

It would assist in putting the United States on an equal financial footing with the countries of Europe when combined with Hamilton's other financial initiatives. Hamilton favoured giving the federal government more authority over state governments. He contended that the growth of business required a strong federal government.

The correct answer is option D.

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the stories of Greek Gods were called ?

Answers

Answer: the Twelve Olympians

Explanation: hope it helps

Which of the following best describes Muhammad's first revelation? OA. He awoke from sleep one day in the presence of an angel who told him to share the messages of Allah. ОВ. He traveled to Mecca, where gods and goddesses were worshiped, and was drawn to a supreme god, one he called Allah. OC. He attended a public meeting held by many preachers of Christianity and Judaism and felt a strong spiritual presence tap him on the shoulder. OD. He was studying religious texts when an angel appeared from the pages and spoke to him about his need to teach others about Allah. ​

Answers

The statement that best describe Muhammed first revealation is awoke from sleep one day in the presence of an angel who told him to share the messages of Allah.

Who is Muhammed?

Muhammed is an Islamic prophet that originate Islam. It was a social activist born in Mecca saudi Arabia and died 632AD.

He wasknow as a righteous man and a prophet. He defended His faith to the end and it was said he had encounter with Allah and he was the one that wrote the Holy quran from the revelation and messages he received from Allah.

Therefore, The statement that best describe Muhammed first revealation is awoke from sleep one day in the presence of an angel who told him to share the messages of Allah.

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Sally ran into another student skipping class. She wrongly assumed he was skipping because of a dispositional reason (he was lazy), while she knew she was skipping because of a situational reason (to study for a different course). Sally is making what error

Answers

According to the above scenario, Sally is making "Fundamental attribution" error.

What do you mean by Fundamental attribution error?

In the context of fundamental attribution error, observers tend to attribute a person's behavior to their characteristics with the passage of time.

The fundamental attribution error is also know as FAE or the correspondence bias. Basically, people will make interpretations of a situation or person based on their own behavior and focus on the internal characters of the person they are speaking with.

The person involved will try to explain how another person is behaving based on their personality or influence.

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On a graph of distance vs. time, what is true of the motion of the object during its first 6 m of travel?

Question 5 options:

The object was moving at a constant speed.


The object was accelerating.


The object was not moving.


The object was northbound.

Answers

For the graph of distance vs. time, the statement that is true of the motion of the object during its first 6 m of travel is the object was moving at a constant speed.

What do you mean by a graph?

A graph refers to the mathematical relationship showing relationships between the lines and the points.

For the above graph, during the first 6 m of travel, the object was moving at a constant speed.

Therefore, A is the correct option.

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Research also describes the infant mortality rate in the United States. This is the number of deaths of children under one year of age in a given time or place. The rate for blacks was nearly ________ that of whites.

Answers

The infant mortality rate for the Blacks in the United States was nearly 2.5 times that of the White Americans.

What is infant mortality rate?

The number of deaths for every 1000 births in the country for infants or children under the age of one year is regarded as an infant mortality rate of that country.

The infant mortality rate of Blacks in the United States is around 10.8 as per the reports in the year 2017; whereas the same for the White Americans is only about 4.8.

One of the major reasons for such is because of the poverty, unemployment, and lack of resources for the Black Americans in the country.

Hence, it can be stated that the infant mortality rate of the Black Americans is 2.5 times as much as that of the White Americans in the United States.

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What happened to all the indian tribes from the east.

Answers

Answer:

The expansion of Anglo-American settlement into the Trans-Appalachian west led to the passage of the Indian Removal Act in 1830, forcing all eastern tribal nations to move to new homelands west of the Mississippi River in the Indian Territory. The Five Tribes purchased new lands in present-day Oklahoma, but some relocated farther north.

Explanation:

hope this helps if not let me know

mother and mother land are superior to the heaven .justify

Answers

Answer:

mother's are provider

Explanation:

mother and father

Answer:

Mother and Motherland are truly greater than heaven.

She will care for them and show her affection towards them unconditionally without any expectations. Moreover, only a mother can give her children undivided attention. As for motherland, it is the land where you belong to.

According to expectancy theory, motivation is hypothesized to be a function of Select one: a. instrumentality. b. social structure. c. self-esteem. d. genes. e. cognitive capacity.

Answers

According to expectancy theory, motivation is hypothesized to be a function of instrumentality.

What is expectancy theory?

Expectancy theory refers to individual's belief that effort will lead to the intended performance goals.

This theory further suggested that individuals will be more motivated to perform if they know that their extra performance will be recognized and rewarded.

Hence, according to expectancy theory, motivation is hypothesized to be a function of instrumentality.

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During the Crusades, what
happened to King Richard I "the
Lionhearted"?
A. King Richard I conquered the Islamic Empire
and controlled the Middle East.
B. King Richard I was left alone to fight against
Saladin without the help of other kings.
C. King Richard I surrendered during the Second
Crusade at the Battle of Judea.
D. King Richard I was killed during the First
Crusade by a Muslim soldier.

Answers

Answer:

~Shoto todoroki here~

The event that happend to King Richard 1 "the Lionhearted"? was

D. King Richard was killed during the First Crusade by a Muslim soldier.

(Hope this helps!)

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