A 5.8 x 10 4 watt elevator motor can lift


Asked by wiki @ in Physics viewed by 543 People


A 5.8 × 104-watt elevator motor can lift a total weight of 2.1 × 104 newtons with a maximum constant speed of

(1)0.28 m/s
(2)0.36 m/s
(3)2.8 m/s
(4)3.6 m/s

Answered by wiki @



Power is defined as the rate at which work is
done upon an object. Like all rate quantities, power is a time-based quantity.
Power is related to how fast a job is done. Two identical jobs or tasks can be
done at different rates - one slowly or and one rapidly.


P = Fv


Where P is the power


F is the weight


V is the average velocity


 


V = P/F


V = (5.8 x 10^4 W)/ (2.1 x 10^4 N)


V = 2.8 m/s


Do you know the better answer?

Similar Questions

Which of the following is an example of applied research

Asked by wiki @ in Social Studies viewed by 166 persons

Which of the following is an example of applied research? a. An educational psychologist who looks for a way to increase math skills in 8-year-olds b. A cognitive psychologist who …

A patient with metastatic bone cancer presents to the oncologist

Asked by wiki @ in Biology viewed by 147 persons

A patient with metastatic bone cancer (primary site unknown) presents to the oncologist's office for a chemotherapy treatment. on examination the oncologist finds the patient to be severely dehydrated and …

Which number has the most factors between 1 and 100

Asked by wiki @ in Mathematics viewed by 160 persons

Eduardo thinks of a number between 1 and 20 that has exactly 5 factors.what number is he thinking

What are 5 signs that a chemical reaction has occurred

Asked by wiki @ in Biology viewed by 160 persons

Question 29 5 pts What are the 5 signs that a chemical reaction has occured? (Select all that apply/ 1 pt. each) Group of answer choices Color change State change …

How did war progress on the western and eastern fronts

Asked by wiki @ in History viewed by 101 persons

How did war progress on the western and eastern fronts?

How many yards do you need to make a blanket

Asked by wiki @ in Mathematics viewed by 183 persons

if 6/7 yard of material is needed to make a blanket, how many blankets can be made from 18 yards of material?

Which class of boats has priority when using river locks

Asked by wiki @ in Social Studies viewed by 117 persons

Which class of boats has priority when using river locks?

How to draw a right angled triangle with a compass

Asked by wiki @ in Mathematics viewed by 154 persons

Using a pencil, pair of compasses and ruler, construct a right angled triangle with hypotenuse 9cm and shorter side 4cm. Measure the angle opposite 4cm side to the nearest degree.

How does failure in the digestive system affect the muscles

Asked by wiki @ in Biology viewed by 160 persons

How does failure in the digestive system affect the muscles? O Muscles get too much oxygen. O Muscles will not get nutrients needed to grow. O Muscles move too much. …

Whose duties include operation of the national response coordination center

Asked by wiki @ in History viewed by 148 persons

Whose duties include operation of the National Response Coordination Center, the effective support of all emergency support functions,vand protection against, response to, and recovery from hazardous incidents

Sio2 polar or nonpolar

Asked by wiki @ in Chemistry viewed by 103 persons

Is SiO2 Polar or Non-polar?

What was the colonial response to the proclamation of 1763

Asked by wiki @ in History viewed by 168 persons

What were the colonial responses to the Proclamation of 1763, the Stamp Act, and the Intolerable Acts, as seen in actions of the Sons and Daughters of Liberty and the …

The term ukiyo e means pictures of the floating world

Asked by wiki @ in History viewed by 115 persons

What Japanese art form meaning "pictures of the floating world" was created using woodblock prints and greatly impacted Western art, particularly impressionists in Europe and America? haiku ukiyo-e Noh kabuki

Online aggregators are more comprehensive than the home listing service

Asked by wiki @ in Business viewed by 87 persons

Online aggregators are more comprehensive than the home listing service that real estate agents use. True or False

I am the first in earth the second in heaven

Asked by wiki @ in English viewed by 137 persons

riddle... I am the first on earth, the second in heaven, I appear two times a week, you can only see me once a year although I am in the …

Controlled intersections use some form of which of the following

Asked by wiki @ in Geography viewed by 253 persons

Controlled intersections use some form of which of the following? Flashing signal lights Circular arrows Signal lights All of the above

Type of movement that decreases the angle of the joint

Asked by wiki @ in Health viewed by 105 persons

A joint produces movement when its angle decreases. Which type of movement is it? flexion rotation extension translation

How do you treat a victim of cold water immersion

Asked by wiki @ in Health viewed by 152 persons

How do you treat a victim of cold water immersion?

Do all angles of a triangle add up to 180

Asked by wiki @ in Mathematics viewed by 130 persons

The sum of the measures of the angles of all triangles is 180 degrees. If one angle of the triangle measure 45 degrees. The measure of the other two angles …

How much food does a giraffe eat in one day

Asked by wiki @ in Mathematics viewed by 180 persons

A large male giraffe needs to eat at least 75 pounds of food each day. At each feeding, the giraffe is fed 3 pounds of food. The giraffe has already …

Which information does the body of a cover letter include

Asked by wiki @ in English viewed by 128 persons

Which information does the body of a cover letter include? A. A description of your experience and personal qualifications B. A mention of where you heard about the open position …

How to find an irrational number between two rational numbers

Asked by wiki @ in Mathematics viewed by 150 persons

Finding an irrational number between which given pair of numbers supports the idea that irrational numbers are dense in real numbers?

Which angles are corresponding angles

Asked by wiki @ in Mathematics viewed by 23 persons

Which angles are corresponding angles check all that apply

Animals can be identified by four basic characteristics

Asked by wiki @ in Health viewed by 147 persons

Animals can be identified by four basic characteristics. One of these characteristics is: feeding habits group behavior life span habitat

What are some possible future changes in the global climate

Asked by wiki @ in Biology viewed by 161 persons

What are some possible future changes in the global climate?

How many words per minute should a sixth grader read

Asked by wiki @ in Mathematics viewed by 149 persons

The average third grade student can read 80 words in 5 minutes. What is the average reading rate per minute? write an expression to represent the problem.

Pqrs is a parallelogram t is the midpoint of pq

Asked by wiki @ in Mathematics viewed by 18 persons

PQRS is a parallelogram and T is the mid point of PQ if ar PTRS=24 cm^2, find the area of PQR​

Difference between grand theory and middle range theory in nursing

Asked by wiki @ in Health viewed by 101 persons

Discuss impact of middle range to grand nursing theories on patient care

An essay that takes the reader through a town

Asked by wiki @ in English viewed by 79 persons

An essay that takes the reader through a town stopping at significant points along the way as organized using A- spatial orderB- chronological orderC- order of comparison and …

What is a popular activity for families in mexico city

Asked by wiki @ in Social Studies viewed by 103 persons

What is a popular sunday activity for families in Mexico city? A. vista the beach b. visit the prado museum c. stroll by the roman aqueduct d. go to the …

Most viewed questions in Physics


A 0.25 kg arrow with a velocity of 12m s

Asked by wiki @ in Physics viewed by 775 persons


Uranium 235 undergoes an alpha decay to produce thorium 231

Asked by wiki @ in Physics viewed by 761 persons


A golf club hits a stationary 0.050 kilogram golf ball

Asked by wiki @ in Physics viewed by 655 persons



Water waves in a small tank are 06 m long

Asked by wiki @ in Physics viewed by 642 persons


In which electric circuit would the voltmeter read 10 volts

Asked by wiki @ in Physics viewed by 602 persons


A tank of water in the shape of a cone

Asked by wiki @ in Physics viewed by 599 persons



A 90 kg person rides a spinning amusement park ride

Asked by wiki @ in Physics viewed by 591 persons


How many times does your heart beat during your lifetime

Asked by wiki @ in Physics viewed by 576 persons


The initial speed of a cannonball is 0.20 km s

Asked by wiki @ in Physics viewed by 569 persons



All of the following are advantages of outsourcing except it

Asked by wiki @ in Physics viewed by 550 persons


A 5.8 x 10 4 watt elevator motor can lift

Asked by wiki @ in Physics viewed by 542 persons


A 60 kilogram student jumps down from a laboratory counter

Asked by wiki @ in Physics viewed by 533 persons



7 types of electromagnetic waves from lowest to highest frequency

Asked by wiki @ in Physics viewed by 495 persons


A golfer hits a ball at an angle of 25

Asked by wiki @ in Physics viewed by 474 persons


Which of the following statements about diffusion is true

Asked by wiki @ in Physics viewed by 452 persons