Un joven cargó una caja de 18 kg hasta una altura de 2.5 metros tardando 11 segundos. Un montacargas lo hizo en 2 segundos. ¿Qué potencia desarrolla la persona y la máquina?

Answers

Answer 1

Answer:

ver explicación

Explanation:

La potencia se define como la tasa de tiempo de realización del trabajo.

Potencia = trabajo realizado / tiempo empleado

En este caso, trabajo realizado por el niño y la máquina = mgh

m = masa del bidy

h = altura

g = aceleración debida a la gravedad

Ancho = 18 × 10 × 2,5 = 450 J

Potencia desarrollada por el niño = 450 J / 11 segundos = 41 W

Potencia desarrollada por la máquina = 450 J / 2 segundos = 225 W


Related Questions

The Equator is the line that __________.

Answers

Answer:

The Equatar is the line that runs around the center of the earth at 0 degrees latitude

Describe action taken in the first New Deal.

Answers

The first new deal dealt with pressing banking crisis through the Emergency Banking Act, The securities act was enacted to prevent a repeated stock market crash. The controversial work of the National Recovery Administration was also apart of the First New Deal. Hope this helps!

Which statement best explains why the Constitution limits the power of the executive branch?

Answers

Which statement best explains why the Constitution limits the power of the executive branch? The Constitution limits the executive branch to keep the president from becoming too powerful.

Answer: The Constitution limits the executive branch to keep the president from becoming too powerful.

Explanation:

Which action prompted the start of the Persian Gulf War?

Answers

Saddam hussein's invasion of Kuwait prompted The start of the Persian Gulf War.

The Louisiana Purchase was a problem for Jefferson because: Group of answer choices acquisition of new Indian lands was contrary to his principles and beliefs the cost was too high for the United States to pay he believed that the Constitution did not give authority to acquire new land it would be hard to defend it against the Spaniards the territory was ideal for slavery, which he opposed

Answers

Answer:

He believed that the Constitution did not give authority to acquire new land.

Explanation:

President Thomas Jefferson was the 3rd president of the United States. He was also American diplomat, statesman and a lawyer. He was the Founding father of the United States of America and also main author of the Declaration of Independence.

Jefferson purchase Louisiana from France in the year 1803. It was a land purchase or deal between the USA and France where USA acquired about  827,000 square miles for $15 million to the west of the river Mississippi. But the purchase of the land is a problem for Jefferson because he knew that the American Constitution did not provide authority to Jefferson to purchase new land.

When working with sources, a writer can avoid plagiarism by:
A. paraphrasing ideas from the sources without copying their
wording
B. not citing sources that are too similar to his or her own ideas.
C. relying on sources that do not list an author for their contents.
D. not keeping records that could prove which sources he or she
referenced.

Answers

A would be the answer because you're not. Using these exact words you're adding your spice

El procesador de texto permite

Answers

Answer:

I don't speak spanish but if you read it better.

Explanation:

Yeah this is right main

The Battle of Bunker Hill in 1775 helped to show

Answers

espero te ayude <3

a batalla de Bunker Hill tuvo lugar el 17 de junio de 1775, como parte del sitio de Boston durante la guerra de Independencia de los Estados Unidos. El General Israel Putnam estaba a cargo de las fuerzas revolucionarias, mientras que el General de división William Howe mandaba las fuerzas británicas. Aunque la batalla es conocida como de la colina Búnker, la mayor parte de la lucha se desarrolló realmente en la cercana Breed's Hill.

What was the main effect of the Articles of Confederation? A. Foreign powers did not take the new country seriously B. The national government was weak C. Three branches of government were created D. The authority of the state governments was severely limited

Answers

The answer is c because it is the best answer out here

identify each description as direct or indirect imperial control

Answers

Incomplete question. However, I provided explanations about the terms.

Explanation:

Basically, the term direct imperial control is used to describe a governance system in which the imperial masters directly control the day-to-day affairs of the colonies they govern, relinquishing little powers to the indigenous rulers.

Meanwhile, in the indirect imperial control, some form of authority is granted to the indigenous rulers by the imperial masters. Thus, this enables the rulers to set some of their own rules, administer headship, etc.

Answer:

Explanation:

Edmentum answers

What was the cause of heavy taxes?

Answers

Answer:

jfkdkskskkfnfnfmd

Explanation:

ncnmdksks so you see cjkdkskekwlalxocnnfnd

Why did many Puerto Ricans dislike the Foraker Act?

Answers

Answer:

The Foraker act gave only partial citizenship to Puerto Ricans

Explanation:

This is the belief that the Foraker act gave only partial citizenship to Puetro Ricans & Roosevelt believed that the US had a responsibility to civilize other nations

Explain the significance of the ATOM BOMB during WW2 (8 marks)

somone please help me with this ​

Answers

Answer:

The use of atomic bombs during WW2 led to an arms race between the United states and the Soviet union.

Elect the correct answer from each drop-down menu. Choose the best way to complete the sentence. The slaves of were the first to rebel against rule and become an independent nation.

Answers

Answer:

The slaves of HAITI were the first to rebel against the FRENCH rule and become an independent nation.

Explanation:

French settled in Haiti in 1659 and became one of the wealthiest colonies producing sugar and coffee mainly, but it was all at the expense of the working force: the Haitian slaves.

Haitians lived in very poor conditions and were treated harshly, as a result over 100,000 slaves and black people revolted against their tyrannical rule in 1789 and the French rule started to weaken. The so-called Haitian Revolution lasted long 15 years, but the Haitians were the victorious ones: they defeated Napoleon Bonaparte's army and abolished slavery, becoming the only nation in the world established as a result of a slave revolt and the first Latin American country to rebel against France rule.

hope it helped! ^_^

Discuss the importance of the Scientific Revolution and how it affected the early Enlightenment Movement?





Will



Give



Brain list

Answers

Answer:

The European Enlightenment of the !8th century could not have happened without the previous, and concurrent, Scientific Revolution, and its technological discoveries and inventions, in the !7th and 18th centuries. The Scientific Revolution is the most important event in world history yet most people have never heard of it. A person is unable to understand the world around around them today without at least some basic knowledge of The Scientific Revolution.

There was a small group of philsophers (of the Enlightenment) who really understood that a new world was emerging in Europe in the human understanding of reality. They understood that Man was able to rationally explain Nature for the first time in human history. That God was not actually physically present in Nature. That God, therefore, might not actually exist at all (Atheism). That Man was now in control of Nature. That Man was no longer part of Nature; these were now two separate philosophical realms. That Man was above Nature, even God. And, the big one, the basis of the Enlightenment itself, that Man could remake the world using his rational thought (ideas) without any reference to European history, European tradition or Man as even part of Nature. In other words, wishful thinking born from the dangerous rationalisation of taking ideas to their logical conclusion without any reference to reality.

So, of course, the adoption of these “scorched Earth” or “Year Zero” ideas of the Enlightment was, and still is, a complete disaster for humanity. Especially when combined with the new controlling powers of Science and Technology. The Enlightentment led directly to the first emergence of Left wing politics - that Man is created purely through Nurture, not Nature, and is born as a “blank slate” - with no reference to our 200,000 years of evolutionary adaptation as part of Nature.

This distorted thinking, in turn, led eventually, to the disastrous political and social events of 1968, when even objectivity itself was jettisoned. And, then to the final post-Modern delusion that European culture, art and science is no better than even the most primitive tribes (blank slates) still living in the jungle today.

in what wat did WW1 represent a turning point in modern world history

Answers

Answer:

I think the answer is . The destination caused by the war led countries to isolate themselves from the world. When WW2 broke out countries wanted to stay apart from other countries because. They were afraid that the other country would join the war and bring destruction to their country.

which term was not an accurate new description for women in the 1920's?
a. wage-earner
b. flapper
c. politician
d. voter

Answers

Answer:

C. Politician

Explanation:

By the 1920s, women had the rights to earn wages and vote, and the term "flapper" was being used for their boldness. Women generally were not politicians in that time period.

Which was the more important reason for the progress of African- Americans in 1960? Was it:

The actions of the civil rights organisation (eg: Martin Luther King, Black power movement etc

or

The Federal Government

(12 Marks)

Answers

Answer:

The actions of the civil right organization (eg: Martin Luther King, Black power movement etc)

The actions of civil rights movement

What was the Calhoun doctrine? I need help :( ( no links aloud )

Answers

I believe that it is option B
He wanted states to have rights to nullify national laws.

Charles I became Charles V Holy
Roman Emperor by

Answers

Answer:

Pope Clement VII

Explanation:

On 28 June 1519, Charles became the top bidder and gained the throne. It was crowned in Germany on 26 October 1520 and was the last emperor, Pope Clement VII, to obtain papal consecration, at Bologna, some 10 years later, on 22 February 1530.

who is the father of albert einstine?​

Answers

Answer:

Hermann Einstein

Explanation:

Answer:

Hermann Einstine

Explanation:

that is his father's name

Alex rolls a fair dice 108 times.
How many times would Alex expect to roll a number greater
than 1?

Answers

Answer:

if a dice is rolled 108 times then

total number of numbers = 108*6=648

numbers greater than 1 = 108*5=540

so the probalililty will be = 540/648

= 5/6 ans

i don't know if its correct or not sombody knows than tell me too

The amount of times Alex can expect to roll a number greater than 1 is

lets say the number is x

p(x=1)= 1/0

p(x>1)= 1-p(x=1)= 1-1/6 = 5/6

x= 108*p(x>1) { formula of expectation }

=108*5/6 = 90

What is probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.  The higher the probability of an event, the more likely it is that the event will occur.

When dealing with experiments that are random and well-defined in a purely theoretical setting (like tossing a coin), probabilities can be numerically described by the number of desired outcomes, divided by the total number of all outcomes.

What is Formula of expectation?

The expected value of a discrete random variable X, symbolized as E(X), is commonly referred to as the long-term average or mean, symbolized as μ. This means that over the long term of doing an experiment over and over, you would expect this average.

For example, let X = the number of heads you get when you toss three fair coins. If you repeat this experiment (toss three fair coins) a large number of times, the expected value of X is the number of heads you expect to get for each three tosses on average.

To learn more about probability here,

https://brainly.com/question/13810637

#SPJ2

what is a characteristic of oligarchy

Answers

A characteristic of an oligarchy could be the government as a oligarchy is when a group of people rules over a majority!
when a group of people rule over a majority

explain how conduction occur​

Answers

Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. ... These vibrating molecules collide with their neighboring molecules, making them also vibrate faster. As these molecules collide, thermal energy is transferred via conduction to the rest of the pan.

what is the impact germany had in their country?

Answers

Answer:

Germany had suffered heavy losses during the war, both in lives and industrial power. 6.9 to 7.5 million Germans had been killed, roughly 8.26 to 8.86% of the population.

Explanation:

In summary, many many Germans were killed during the war.

What did Reagan present as the main goal of his foreign policy?

to support global rebellions against ruling governments
to supply arms, bases, and fighters to freedom fighters
to limit aggressive actions and promote diplomacy among democratic allies
to protect democratic values and prevent the spread of communism

Answers

Answer:

To protect democratic values and prevent the spread of communism.

Explanation:

The Reagan Doctrine was the name for the strategy implemented by the United States during Ronald Reagan's presidency, which aimed to limit the influence of the Soviet Union by supporting anti-Communist guerrilla movements in the Soviet satellite states. The aid that the US gave to anti-communist movements went to, among others, the Contras in Nicaragua, the Mujahedeen in Afghanistan and UNITA in Angola. The strength of the strategy lay in the relatively low cost of supporting guerrilla movements without the direct deployment of American troops, as opposed to the high costs incurred by the Soviet Union in supporting the communist governments in the countries concerned.

Answer:

D: To protect democratic values and prevent the spread of communism.

Explanation:

The independence movements in Latin America between 1810 and 1822: a. created new nations that economically developed at a very fast rate. b. gained very little sympathy in the United States because of atrocities committed by revolutionaries. c. paralleled in some ways the independence movement that created the United States. d. created seventeen different nations, each headed by a person of Indian ancestry. e. led Spain to crack down and succeed in consolidating its power in the Americas.

Answers

Answer: c. paralleled in some ways the independence movement that created the United States.

Explanation:

Napoleon invaded Spain in the early 1800s and Spain's colonies in the Americas decided to use this as an excuse to wrestle independence from Spain. In most cases wars of independence were fought and only after the colonies won, did they get independence.

This paralleled the struggle for independence in the United States as they had to fight the British in the American Revolution in order to gain independence.

De que manera se desarrolló la guerra fría

Answers

Answer: Su Origen Es situado entre 1945 y 1947 a causa de las tensiones de la posguerra, esta fue prolonged a hasta la disolucion de la union sovietica!

Explanation: simple response

In this activity, you’ll analyze an advertisement and a political cartoon to examine different perspectives on “The White Man’s Burden.”

Part A

In 1899, British poet Rudyard Kipling published the poem “The White Man's Burden.” Read the poem and then think about this prompt:

The poem dramatically expresses some issues and difficulties of imperialism. Readers interpret the poem in different ways. Some say it’s a justification of colonization. The poem says that colonizing foreign regions was necessary to develop and modernize the world. It was the white man’s burden to lead this task. Others say the poem is a satire. It makes fun of imperialists for believing that they were doing their colonies a favor.

What do you think Kipling’s attitude was toward imperialism? Support your answer with information from the poem and this lesson. Your answer should consist of 75 to 100 words.

Answers

The correct answer to this open question is the following.

I think Kipling’s attitude toward imperialism was of supporting the idea that white people were superior to blacks and indigenous people.

Indeed, his poem dramatically expresses some issues and difficulties of imperialism. We could say the poem includes a justification for colonization. Kipling stated that colonizing foreign regions was necessary to develop and modernize the world. That is why he called the white man’s burden to lead this task.

English author Rudyard Kipling wrote the poem in 1899, in the times when the United States had won the Spanish-American War, and as a result of this, the US took possession of Guam, Puerto Rico, and the Philippines, which were part of the Spanish monarchy.

At that time, Europeans sadly believed that they were a more evolved race who deserved to take over others. This is related to the term "Social Darwinism," which is considered to be imperialistic and racist.

which listing correctly ranks the classes of ottoman society from the bottom down

Answers

In the Ottoman empire, there were four different types of major social classes. These were men of the pen, men of the sword, men of negotiation, and the men of husbandry

Answer:

I don't see any options provided, however B) men of the sword, men of the pen, men of negotiation, men of husbandry is the correct answer I believe.

Explanation:

The correct order of ranks from top on down of the classes within the Ottoman society was men of the sword, men of the pen, men of the negotiation, and men of husbandry.

^Hope this helps! :D

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