What power output is required of a motor that needs to lift a 450 kg elevator car 12 meters in 8.0 seconds?\

Answers

Answer 1

Answer:

[tex]Power = 6.62kw[/tex]

Explanation:

Given

[tex]Mass = 450kg[/tex]

[tex]Height = 12m[/tex]

[tex]Time = 8s[/tex]

Required

Determine the power output required

First, we calculate the energy used to lift the object.

To do this, we make use of potential energy formula:

[tex]Energy = mgh[/tex]

Where

[tex]g = 9.81m/s^2[/tex]

So, we have:

[tex]Energy = 450 * 9.81 * 12[/tex]

[tex]Energy = 52974J[/tex]

The power output is then calculated as:

[tex]Power = \frac{Energy}{Time}[/tex]

[tex]Power = \frac{52974}{8}[/tex]

[tex]Power = 6621.75W[/tex]

Convert to kilowatt

[tex]Power = \frac{6621.75kW}{1000}[/tex]

[tex]Power = 6.62175kW[/tex]

[tex]Power = 6.62kw[/tex] --- approximated

Hence, the power output is 6.62kw

Answer 2

Using the power formula, the required power output needed to lift the load is 6.615 Kw

Given the Parameters :

Mass of car = 450 kg Distance = 12 meters Time taken = 8 seconds

Recall :

Power = (Workdone ÷ Δtime)

Workdone = Force × Distance ; Force = mg ; g = Acceleration due the gravity, = 9.8 m/

Hence,

Power = [(mgh ÷ t)]

Power = [(450×9.8×12) ÷ 8]

Power = 52920 ÷ 8

Power = 6615 watt

Hence, the power output required is 6615 watts = 6.615 Kw

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Related Questions

Question 6
5 pts
Officer Friendly observed Sam looking through the windows
of a closed Verizon cell phone store late at night. Sam
noticed the officer sitting in his police car looking at him and
Sam quickly walked away.
The officer thought Sam's actions looked suspicious.
Which of the following concepts apply to this situation?
Choose all that apply.
The officer has a basis to do a pat-down search of Sam for
weapons
The officer has a basis to conduct a full-body search of Sam
The officer has probable cause to arrest Sam
The officer has a basis to briefly stop and detain Sam and ask
him what he is doing

Answers

Answer:

The officer has a basis to briefly stop and detain Sam and ask him what he is doing.

Explanation:

Sam probably walked away because he did not want the officer to detain him.

lee Isaías 25,6-10 y encuentra dos comparaciones entre el banquete que describe

el profeta y la gloria que nos espera .

comparación 1

comparación 2

Answers

La respuesta correcta para esta pregunta abierta es la siguiente.

Pues revisando la información solicitada, podemos hacer las siguientes comparaciones.

1.- En ese versículo, el profeta Isaías hace referencia a la metáfora de la montaña, en donde existe un gran banquete para los elegidos de Dios en la cima. Habla de las delicias que le esperan a los fieles de Dios como recompensa a sus acciones. Algo así como el premio del señor después de una vida entregada a él.

Podemos encontrar una idea similar, pero ésta se encuentra en el Nuevo Testamento, en el evangelio de Lucas, cuando el evangelista se refiere a que Jesús invita a los fieles a comer y gozar del reino de los cielos.

2.- La segunda comparación es cuando el profeta Isaías hace referencia a que Dios consolará a sus fieles en el cielo, después de la muerte. Ahí, dice Isaías, el humano ya no sentirá dolor ni sufrimiento como lo sentía en la Tierra.  

De igual manera, en Corintios, dentro del Nuevo Testamento, se hace referencia a que Cristo vencerá a sus enemigos y reinará por siempre en el reino de los cielos, en donde el humano podrá vencer a la muerte como Jesús lo hizo.

Which of the following is NOT considered a specialized court?
A. Mental Health Courts
B. Domestic Violence Courts
C. Drug Courts
D. Civil Court

Answers

Answer:

D, Civil court

Explanation:

The civil court should not consider a specialized court.

The following information is regarding the specialized court is:

It is the type of court that focuses on the offenses & offenders of a special type. It includes the domestic violence courts, drug courts, mental health courts, veterans courts, etc.

Therefore we can conclude that the civil court should not consider a specialized court.

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Identify and define two types of crimes.

Answers

Answer:

Theft and Arson.

Explanation:

Theft means stole

Arson= destruction

Answer:

Murder and Arson

Explanation:

Murder is you kill someone and Arson is you burn places.

The method for selecting judges that a group of lawyers
and citizens making recommendations to the governor, the governor
appointing the judge, and an eventual retention election" is called:
A. Electoral selection
B. Legislative appointment
C. Merit selection
D. Gubernatorial selection

Answers

Answer:

C, Merit selection :)

Explanation:

The method for selecting judges that a group of lawyers and citizens making recommendations to the governor, the governor appointing the judge, and an eventual retention election" is called Merit selection. Hence, option C is correct.

What is Merit selection?

A nonpartisan panel of attorneys and non-lawyers is used to locate, recruit, investigate, and evaluate suitable applicants for judicial positions. Candidates for civil service positions are chosen using a system called "Merit Selection" depending on how well they did on competitive tests.

The British introduced the Merit System, a permanent civil service appointed following a competitive examination, in India in 1858, twelve years before the UK and twenty-five years before the US.

A nonpartisan judicial committee analyzes applications, conducts interviews with candidates, and chooses a judge panel in accordance with the Missouri Nonpartisan Court Plan.

Thus, option C is correct.

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My uncle chocked, and my aunt asked her child who was in the room and he and his child denied it. I am so upset because they dont believe. I want him exposed, but i dont want him to go to jail. Because my parents are divorced so i practical dont have a dad. So i would never like to see anyone else who knows there father to loose them. Its crazy how i behaving this way but in Ephesians 4:32 it says be and forgive people because god always forgives us no matter what we do. So please tell me a way to expose him without. The police getting involved

Answers

Could you maybe detail this a bit more, I’m a bit confused. I could help you tho if you don’t mind detailing it.

You must be prepared to stop within ___ feet of an intersection?
50
100
150
200

Answers

You must be prepared to stop within 100 feet of an intersection! Hoped this helped!
the second option.





it’s the second option

Who represents EVERYONE in their WHOLE STATE?

Answers

Answer: Members of the U.S. House of Representatives each represent a portion of their state known as a Congressional District, which averages 700,000 people. Senators however, represent the entire state.

Explanation:

Answer:

US senator

Explanation:

similarities of male in se and male prohibita?

Answers

AIt duhhhhhhhhhhh hhhh

the value of having balanced understanding about ones right and duite as we as acting accordingly​

Answers

I’m not sure I understand

Where do BOTH of these groups SERVE the people?

Answers

What do you mean groups???...are you supposed to be showing an image or something?-

1. Which type of newspaper article would be treated as a secondary source, even if it was written near the same time as the event?

1)an opinion piece, like an editorial
2)information from the obituary or classified section
3)articles from the sports section
4)articles from the arts and culture section

Answers

4 articles from the arts and culture section

Answer:

A( an opinion piece, like an editorial

Explanation:

What is true about the inertia of two cars, Car A of mass 1,500 kilograms and Car B of mass 2,000 kilograms?
OA.
Car A and Car Bhave the same inertia.
B.
Car A has more inertia than Car B.
Oc.
Car Bhas more inertia than Car A.
ОО
D.
Both the cars have negligible inertia.

Answers

Answer:

Car B has more inertia than Car A.

Explanation:

Inertia of a body is the property to oppose its state of rest or state of uniform motion. It is also equivalent to the measure of its mass. Newton's first law of motion is also called as law of inertia.

According to your question, we have to mention the name of car that has more inertia. So, the body having more mass will have more inertia.

The mass of car A is 1500 kg while the mass of car b is 2000 kg. Hence, car B will have more inertia.

Examples of letters such as A for Adulterer or T for Thief were forms of what kind of punishment?


offender classification

incarceration

fines

public shaming

Answers

Answer:

Public shaming

Explanation:

Public humiliation or public shaming is a form of punishment whose main feature is dishonoring or disgracing a person.

What social, political, economic, and environmental issues have meaning and value
to you as a student and as a citizen? Why are these concerns important to you?​

Answers

As a student and as a citizen. It is overwhelming to see the future. It does not matter with political and economic first take care of the environmental issues.

The environmental issue that has meaning and value to me is climate change.

Climate change simply refers to the long-term shifts in the temperature and weather pattern. Climate change can be a result of variations in the solar cycle or human activities.

Climate change brings about an alteration in temperature. It can be due to fossil fuels, deforestation, etc. Therefore, it's important for individuals to engage in activities that won't have a negative impact on the environment.

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Which power does the U.S Constitution give to the president?

A. Appointing members of Congress
B. Voting on new federal laws
C. Pardoning those convict crimes
D. Overriding Supreme Court decisions

Answers

Answer is Letter C pardoning

What did the survey of 1979, showing the huge increase in probation officers' duties, indicate about the status of probation in this country? Probation worked only for juveniles. Judges no longer supported the probation system. Probation officers had too much work and too little funding. Other studies supported incarceration for preventing criminals in a return to crime.

Answers

Answer:

Other studies supported incarceration for preventing criminals in a return to crime.

Explanation:

Hello. You did not show the text to which this question refers, which makes it difficult for it to be answered. However, after extensive research it was possible to conclude that there are many studies that claim that incarceration prevents criminals from committing crime again. This is because imprisonment promotes social isolation, where the prisoner is unable to promote crime in any sphere of society. In addition, the prisoner is constantly watched, something that does not happen on conditional freedom.

Article 35.00 of New York State Penal Law is also called

Answers

Answer:

The Penal Law of the State of New York

Explanation:

The Penal Law of the State of New York combines justification and necessity into a single article, Article 35. "Defense of Justification" comprises sections 35.05 through 35.30 of the Penal Law. The general provision relating to necessity, section 35.05, provides: § 35.05 Justification; generally.

:)

2. What is national consensus?
3. What is the difference between material
and non-material culture?​

Answers

Mojammebijmavjaommaabsom oosmaoajshsoo 1 skins

1. The Site Coordinator Test is mandatory for a designated coordinator and optional
for alternate coordinators.
a.
True
b. False

Answers

Answer is A I believe

Site Coordinator Training is a requirement for all coordinators and backup coordinators. Prior to carrying out any site coordinator tasks, they must also be certified under the Volunteer Standards of Conduct (VSC) and pass the site coordinator test. Annual requirements include site coordinator training and testing.

What are Volunteer Standards of Conduct (VSC)?

The Volunteer Standards of Conduct (VSC) Test, the Volunteer Standards of Conduct Agreement, and passing with a BASIC certification or higher are requirements for all volunteers.

A VSC certification test must be passed by all VITA/TCE volunteers with a score of 80% or better. Volunteers must be qualified in tax law and the Intake/Interview & Quality Review Process if they want to provide tax law advice, teach tax law classes, create or correct tax returns, or conduct quality reviews of finished tax returns.

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