Which of the following would require more energy to heat it from 10°C
to 20°C?
a. 200 kg of water
b. 200 kg of aluminum
c. 100 kg of steel

Answers

Answer 1

Answer:

Explanation: A

[tex]$$The heat $Q$ which a body absorbs or radiates can be expressed as:$$Q=m c \Delta T$$Where $m$ is the mass, $c$ is the specific heat capacity and $\Delta T$ is the change in temperature.[/tex]

[tex]$$Substitute the known and given values into the equation above and calculate the results:[/tex]

[tex]\begin{aligned}Q_{w} &=m_{w} c_{w} \Delta T=200 \cdot 1000 \cdot(20-10)=2 \cdot 10^{6} \mathrm{~J} \\Q_{A l} &=m_{A l} c_{A l} \Delta T=200 \cdot 897 \cdot(20-10)=1.8 \cdot 10^{6} \mathrm{~J} \\Q_{s} &=m_{s} c_{s} \Delta T=100 \cdot 420 \cdot(20-10)=4.2 \cdot 10^{5} \mathrm{~J}\end{aligned}[/tex]

[tex]\text { Therefore, } 200 \mathrm{~kg} \text { of water would require the most energy to heat up. }[/tex]


Related Questions

Which experimental procedures are designed to decrease bias in experiments and increase generalization of the results?.

Answers

Random sampling and random assignment.

PROJECT: SUPREME COURT
The Supreme Court holds the power to interpret the laws that change the fabric of our daily lives. The practices of the federal government are called into question when the highest court in our country rules on the cases presented before them. Past rulings have struck down the practice of racial segregation in public schools, defined free speech, and upheld child labor laws. The Court's decisions impact our rights as citizens and cover topics concerning abortion, free speech, racial quotas, reading material, and illegal searches. The Supreme Court's interpretation of federal laws leads to the practical application and enforcement of those laws.

Every case heard by the Supreme Court is an argument. In the end, the Supreme Court decides which side of the argument is correct. Their claim is called the Opinion of the Court. However, a minority of Supreme Court justices might disagree with the opinion of the court or its impact on federal law. Their counter claim is called the Dissenting Opinion. Not every split ruling will result in a published Dissenting Opinion, but many do. Although only some cases will publish a Dissenting Opinion, all cases will result in an Opinion of the Court.

Researching and summarizing can help clarify complicated topics like the oral arguments presented to the Supreme Court. Writing a summary paper can organize data and educate you as well as your reader. Because every citizen is ultimately impacted by the Opinions of the Court, summary papers are powerful tools that make complicated arguments easier to comprehend.

Answers

The text has three key points. They are:

The Supreme Courts' interpretation of federal laws has the power to change our daily lives;

What are the other two key points from the text?

The other two key points from the text are:

       2. There can be two opinions in the Supreme Court:

Opinion of the Court and Dissenting Opinion.

         3. Summary papers are powerful tools that make complicated legal arguments easier to understand.

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Alison and her therapist have agreed that Alison will control the length and frequency of her sessions. Her therapist also tries not to give advice, but rather, to rephrase Alison's concerns to help Alison focus her thoughts more effectively. Alison is probably in:

Answers

The type of therapy that Alison is currently engaged in is known as person-centered therapy.

What is Therapy?

This refers to the treatment given to patients with some form of mental illness by a trained psychologist.


Here, we can see that because Alison and her therapist have an agreement about the frequency of their sessions and also tries to rephrase Alison's concerns to help Alison, this is known as person-centered therapy.

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A primary identity in an individual suffering from a dissociative identity disorder is usually more __________ than the other identities. a. passive b. narcissistic c. aggressive d. authoritative

Answers

Answer:

A. Passive

Explanation:

A primary identity in an individual suffering from a dissociative identity disorder is usually more passive than the other identities.

What is dissociative identity disorder?

Dissociative identity disorder is when a person feels ignored by people around him or her, which is different from reality.

Here, persons suffering from this disorder have different thoughts or imaginations, which are far from reality.

Hence, a primary identity in an individual suffering from a dissociative identity disorder is usually more passive than the other identities.

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#SPJ2

During the Renaissance, people began to question
O religious ideas
secular ideas
classical ideas
O scholarly ideas

Answers

Answer:

The answer is D I took this quiz already:))

During Renaissance, people began to question religious ideas. Hence, the correct answer is option A.  

What is Renaissance?

The Renaissance was a period of cultural and intellectual rebirth that took place in Europe between the 14th and 17th centuries. It was characterized by a renewed interest in classical learning, art, and architecture, and a rejection of medieval values and beliefs. The Renaissance marked a turning point in Western history and set the stage for the Scientific Revolution and the Enlightenment.

During the Renaissance, there was a growing interest in humanism, which emphasized the importance of individual human beings and their ability to reason and think critically. This led many people to question traditional religious beliefs and institutions, and to seek new forms of knowledge and understanding based on observation and empirical evidence.

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After her arrest, a police psychologist diagnosed Samantha as being hyperactive, impulsive, and hedonistic. She has a(n) ________ personality.

Answers

Assuming a police psychologist diagnosed Samantha as being hyperactive, impulsive. She has a(n) Antisocial personality.

What is Antisocial personality?

Antisocial personality is a type of mental disorder that occur when a person is not remorseful after doing something bad.

A person with this type of personality are always aggressive and do not have empathy as do not care about people around them.

Therefore she has a(n) Antisocial personality.

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Whats the maximum time someone can serve as president.

Answers

Answer:

about 8 years so two terms but it is possible to be president for 10 years

The maximum time someone can serve as a president is ten years

Read the passage from “Edgar Allan Poe.”

“In speaking of my mother you have touched a string to which my heart fully responds. To have known her is to be an object of great interest in my eyes. I myself never knew her—and never knew the affection of a father. Both died (as you may remember) within a few weeks of each other. I have many occasional dealings with Adversity—but the want of parental affection has been the heaviest of my trials.”

The dialogue helps the reader analyze

A Poe’s parents.
B the central idea.
C the main setting.
D Poe’s character.

Answers

Answer:

A pose parent's

Explanation:

He's talking about his mother and father

Answer:

A pose parent's

Explanation:

How many countries are in the united nations today?.

Answers

Answer:

193

Explanation:

States. The UN's Membership has grown from the original 51 Member States in 1945 to the current 193 Member States.

Professor Tabarrok believes that education is mostly about signaling, which means he thinks it is mostly about:

Answers

The thing which Professor Tabarrok most likely means when he says that education is mostly about signaling is that he thinks that the outside world needs to see an underlying level of talent.

What is Signaling?

This refers to the contract theory that believes that a person can confidently convey some vital information about himself to someone else.

Hence, with this definition in mind, we can understand that if a person believes that education is mostly about signaling, then he usually means that there is the showing of talent and knowledge to the outside world.

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What is the name of the region where the Nile River spreads out into the Mediterranean Sea? A. Delta B. Headway C. Spring D. Plateau​

Answers

Answer:

The answer is A. Delta

Explanation:

A

As used in modern terminology to reflect coping styles, defense mechanisms: can be either adaptive or maladaptive are always maladaptive are never adaptive are always self-defeating

Answers

As used in modern terminology to reflect coping styles, defense mechanisms can be either adaptive or maladaptive.

What is adaptation and maladaptation?

Maladaptation serves as a trait that is more harmful than helpful in organism.

Adaptation on the other hand serves as the process of how an organism can sustain itself.

Therefore in contrast with an adaptation, maladaptation is more helpful than harmful.

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Can somebody help me with this question? I really need big help.

Answers

Answer:

C

Explanation:

Buddhism is one of the world's largest religions and originated 2,500 years ago in India. Buddhists believe that the human life is one of suffering, and that meditation, spiritual and physical labor, and good behavior are the ways to achieve enlightenment, or nirvana.

Answer:

C. Gautama became enlightened.

The 'Sahiwal' is a breed of which among the following in India?
a. Camel
b. Cattle
c. Buffalo
d. Sheep​

Answers

Answer:

B. Cattle

Explanation:

It refers to a type of cow, meaning it is cattle

I would like some help please!

Answers

Answer:

ivey and sailt  ----not traid

gold and copper---- traid

Explanation:

salt and ivory is in ‘goods that originated from Mali. And copper and gold is in ‘goods that Mali obtained through trade’!

What italian musical term translates to in the church style?.

Answers

Answer:  

A Cappella

Explanation:

A cappella.

This is a very entertaining trivia question of the day and the correct solution is as follows: What Italian musical term translates to in the church style? A cappella.

A cappella music is a performance by a singer or a singing group without instrumental accompaniment, or a piece intended to be performed in this way. The term a cappella was originally intended to differentiate between Renaissance polyphony and Baroque concertato musical styles. In the 19th century, a renewed interest in Renaissance polyphony, coupled with an ignorance of the fact that vocal parts were often doubled by instrumentalists, led to the term coming to mean unaccompanied vocal music. The term is also used, rarely, as a synonym for alla breve.

Hope this helps :)


Which countries were involved in the triple Aliance

Answers

Answer:

Germany, Austria-Hungary, and Italy

Explanation:

In which country would women be most likely to have more rights?.

Answers

Answer:

Sweden

Explanation:

A __________ earns a doctoral degree in medicine, provides therapy for those with severe disorders, and is able to prescribe medication for various disorders. a. counselor b. psychiatric nurse c. psychologist d. psychiatrist please select the best answer from the choices provided a b c d

Answers

Answer:

The answer is D, psychiatrist

Explanation:

i had one so i would know

Someone who serves food and beverages to patrons in the hospitality and tourism industry is referred to as:
A.
a server.
B
a travel agent.
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Answers

Answer:

The answer is A. a server.

Explanation:

A server handles orders from customers which include serving food and beverages. A travel agent offers travel-related services to people. A gaming manager usually monitors and directs casino operations and a concierge usually assist customers lodging in a hotel by helping with luggages and receiving mails.

do you think that there is still a Cold War between the United States and Russia, and/or China?

Answers

it has been decade's that we have been listening us and china having no good relationship and china supporting Russia makes the Russia in spot too

U2 L1

1 - What does the barter system mean? Compare and contrast between commodity money and paper money. Explain their differences with examples.

2 - What is a short-run goal? What is a long-run goal? Give examples of one short-term goal and one long-term goal that would help you balance your budget.

3 - What is philanthropy? Think of four ways you could use money to do good deeds in society.

Answers

Answer:

barter system means exchanging goods and services between a persons or amongst countries

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Answers

Radiation is energy that comes from a source and travels through space at the speed of light. Keywords in this field are explained below.

Vocabulary in science

A medication or gas used to induce a state where the patient will feel no pain is called anesthetic.People working together for a common goal is called a teamThe study of infectious disease is called pathogenicsHigh-energy waves that can cause damage to cells is ionizing radiationTreatment that uses high-energy concentrated radiation to kill cells that make up tumors or other lesions technology is radiationThe use of diagnostic x-ray equipment is Diagnostic X-ray, or radiography.

Therefore, the sentences or interpretation above are ascribed with appropriate keywords.

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Choose the TWO answer choices that describe the role of the citizen in elections in South Africa

Answers

Answer:

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Explanation:

please consider as brainlest

Your blind date arrived at the restaurant a half hour late, and you were not impressed by the conversation that followed. Your early appraisal colored your subsequent perceptions of her due to the __________ effect.

Answers

According to the context raised in the fragment, it can be inferred that the most appropriate term to refer to this situation is horn effect.

What is horn effect?

The horn effect is a term that refers to a form of cognitive bias in which one individual's perception of another is unduly influenced by a single negative trait.

According to the above, it can be inferred that the situation presented is an example of the horn effect, because the perception we create about our blind date is influenced by a couple of negative aspects, without contemplating an extra opportunity for that person to change that negative perception.

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Who invaded florida in 1818, claiming that he was chasing seminole people? james k. polk john quincy adams andrew jackson daniel boone

Answers

Answer:

President Andrew Jackson was the one that invaded Florida in 1818.

Explanation:

This president was the one that was in power when the United States was at the verge of their expansionism. He was the president that was responsible for the manifest destiny. He chased a lot of Natives from their ancestral homes.

it would president andrew!!

How did the windmill contribute to the expansion of ranching and farming in Texas

Answers

Answer: On the heels of civilization came diversification, as the windmill and its successor, the electric pump, allowed ranchers to increase the size of their herds and farmers to expand from dryland crops to irrigated ones like corn.

Explanation: hope this helps :D

Although ________ are typically unwritten and seldom discussed openly, they have a powerful influence on group and organizational behavior.

Answers

Norms are typically unwritten and seldom discussed openly.

What are Norms?

Norms are predefined set of unwritten rules which is expected by the society to be conformed to.

Norms are known to influence a group or organisation by encouraging positive behavior and discouraging negative behaviors.

Examples of some norms practised although unwritten and not discssed includes:

Showing kindness to the elderly, like opening a door.join a queue,  instead of pushing or cutting corners

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When it was created in 1960, what did the n in sncc stand for?.

Answers

When it was created in 1960, what did the "N" in SNCC stand for? National. Needy.

Rafik attends a program at a local prison where inmates talk to him about his behavior and describe how their similar actions led to their imprisonment. This program for at-risk children can BEST be described as a _____ program quizlit

Answers

Based on the given scenario, this can be best described as a prevention program.

What is Therapy?

This refers to the treatment given to people who have some mental challenges where a trained psychologist talks to them and helps them better manage their problems.

Here, we can see that because Rafik attends a program in prison where other inmates talk about their experiences and what brought them inside, this is known as group therapy and it can be best described as a prevention program.

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