Search: work

Number of results: 32,410

Physics
workapplied=39cosine22.6*1m= work doneonbook= 1/2* 4 *1.75^2 work friction= work applied-work done
Wednesday, July 18, 2012 at 8:06pm by bobpursley

Chemistry I
For the methanol combustion reaction 2CH3OH(â„“) + 3O2(g) ----> 2CO2(g) + 4H2O(g) estimate the amount of P [change]V work done and tell whether the work was done on or by the system. Assume a temperature of 27â—¦C. 1. 2.5 kJ, work done ...
Thursday, July 1, 2010 at 9:04pm by Anonymous

Physics
1. No The train does work; the wagon has work done on it. 2, Negative net work ON an object is work done BY that object against another force. When negative work is done ON an object, its kinetic energy may decrease, but not necessarily. The work done can be converted to other...
Saturday, October 27, 2007 at 9:44pm by drwls

arithmetic
A and B can complete a piece of work in 8 and 10 days respectively However they work alternately one day each with beginning the work In how much time will the work be completed?
Friday, February 3, 2012 at 6:05am by Ramesh

science
percentages: to use a machine,u must do the work on the machine called input work. the machine then foes the work on and object called output work. not all the input work gets transmitted to output work. some work is lost due to friction in the machine. if a machine has an ...
Wednesday, September 12, 2007 at 9:37pm by kim

physics
Work=mgh work=mxgxh work=20x10x2 work=400j
Monday, June 20, 2011 at 1:58pm by Olaniyan

English
1. Do you do any volunteer work? How about your friends? 2. Yes, I do. They do volunteer work, too. 3. No, I don't. They don't do volunteer work, either. (Are the answers grammatical?) 4. Do you do any volunteer work? 5. Are you doing any volunteer work? (Which ...
Wednesday, October 27, 2010 at 8:52am by rfvv

thermodyn. please check work
2. does the temp of the nail not increase? 3. When you squeeze gas it gets hot. If you do it rapidly enough there is no time for heat to escape. 4. That did the gas do work on? 5. Again I do not see any work being done. 6. The steam expands through the turbine, losing ...
Saturday, August 15, 2009 at 10:26pm by Damon

physics
now as a simple example think of a mass m at rest. We push on it with a force F and it accelerates with a = F/m The speed is v = a t The distance is d = (1/2) a t^2 The work in is F * d = m a d If all is well and no energy is lost then the work in = the kinetic energy but work...
Thursday, February 16, 2012 at 10:22am by Damon

physics......PLEASE HELP!!
A steam engine absorbs 1.98*10^5 J and expels 1.49*10^5 J in each cycle. Assume that all of the remaining energy is used to do work. a. What is the engine's efficiency? b. How much work is done in each cycle? If a gasoline engine has an efficiency of 21 percent and loses ...
Wednesday, February 14, 2007 at 6:59pm by anonymous

maths
Please guide me to solve the below problem: 'A'an do 2/3 of a work in 40 days.'B'can do 1/2 of the work in 75 days.'C'can do 3/4of work in 75 days.If all them together work in how many days will they do 5/6 0f the work. I had solved the above problem ...
Sunday, September 4, 2011 at 12:36pm by Ramesh Reddy

Physics
1. The weight of the partner is: F = mg = (66.4 kg)(9.8 N/kg) 2. The work done in a single lift is: work = F x distance lifted. 3. Total work = (work /lift)(27 lifts)
Saturday, November 15, 2008 at 2:37pm by GK

Physics
W=F.d , W= (198.0N)(3.6m)cos 0, W=712.8 N.m this is your work. W=(151.0N)(3.6)cos 180, W=(-1)543,6N.m this work is negative because the force of friccion is opposite a the direction of movement y therefore the angle is 180 for last the total work is the sum of the all work PS...
Sunday, May 27, 2012 at 6:50pm by Delbarre

About work
Hello am new at this work at home but i never find any good site i can work with pls help am from nigeria send me link of good work at home that can suit me nothing is small to earn. thanks
Monday, July 25, 2011 at 10:33am by Adewale

physics
System 1: Yes, work is done by the gravitational field. Work done is the same as the loss of potential energy. System 2: Work is done while it falls, but when it stops, all that work (which became kinetic energy) is converted to heat.
Tuesday, May 25, 2010 at 6:30pm by drwls

physics
mechanic: 225N*37.5m=work done by mechanic engine:4500*1.5 Joules work done so, work done by block/pulley is the secondline, the work done on the engine.
Thursday, March 17, 2011 at 7:06pm by bobpursley

physics
I don't particularly like circuit breakers tripping. It usually means I have a lot of work to do and money out the flare stack. Of course if it doesn't work then the fire department has work to do, and I have a lot of work to do.
Saturday, March 12, 2011 at 10:15am by Engineer at Refinery

Math
Ok I need help to figure out how to solve this problem 4 working move into town looking for work. A local business offers them 200 hours of work. The catch is, they have to work the same number of hours as they do days. I.E. if they work 8 hours they have to work 8 days. What ...
Tuesday, August 17, 2010 at 12:06am by Mo

English
Answering these questions might help. First, briefly describe the content of the work, then... How did this work relate to you? If you don't think it relates to you, indicate why. What (if anything) did you learn? Did the work promote any emotional responses from you? If ...
Wednesday, March 16, 2011 at 12:29pm by PsyDAG

physics
Add the friction work to the work done against gravity, M g H, to get the total work required. (in part a)
Saturday, January 31, 2009 at 10:52am by drwls

physics
There is no NET work done on or by an object if its speed does not change. There could be work done on it that is cancelled by frictional work that it does.
Friday, March 5, 2010 at 1:40am by drwls

English
"and you can do work" ~~> would be better phrased as one of these: ... and you can do more work ... ... and you can work ...
Thursday, May 29, 2008 at 5:57pm by Writeacher

logic
Logically speaking, if the only road to success is hard work, then if one goes the road of hard work, it may lead to success, since there may be diversions off that road. so, all members of success include hard work, but all results of hard work is not success. On a Venn ...
Wednesday, December 31, 2008 at 1:16pm by bobpursley

Math
mr. prisillas leaves for work at 7:10am he arrives at work at 8:20 a.m how long does it take him to get to work
Thursday, December 6, 2012 at 3:36pm by stephanie

Chemistry -- to Dr.Bob
The bold didn't work every where I wanted it to work but I think you can separate my work from yours.
Saturday, May 3, 2008 at 3:30pm by DrBob222

math
A company produces three types of color TVs: Models X, Y and Z. Each model X requires 2 hours of electronic work and 2 hours of assembly work. Each Y model requires 1 hour of electronic work and 3 hours of assembly work. Each model Z requires 3 hours of electronic work and 2 ...
Monday, October 1, 2012 at 10:30pm by justin

Physics
You are doing work on gravity, so it will be negative work done by the book (the book gains energy) work= weight(height) -10 J is the work done by gravity.
Wednesday, October 10, 2007 at 2:15pm by bobpursley

algebra
We do not do your work for you. Once you have answered your questions, we will be happy to give you feedback on your work. Although it might require more time and effort, you will learn more if you do your own work. Isn't that why you go to school? Give your work and/or ...
Friday, October 1, 2010 at 11:23am by PsyDAG

English
Can you please help me work out phrasal verbs related to work? When do you think will you come ...... to work? What are the possible prepositions? back .... are there others? What about "down"? Can you think of any phrasal verbs used with work (apart from take a day ...
Thursday, March 22, 2012 at 4:41pm by Matthew

9th grade
Work = Power * time Work = 478 Watts * 14 sec Work = 6692 Joules
Saturday, November 20, 2010 at 1:58pm by Carey

Physics
thanks for showing your work. It is easy to critique work, most kids rely on my crystal ball, which does not always work.
Sunday, November 15, 2009 at 8:09pm by bobpursley

5th grade math word problems
bob started each work on the hour. one day he decided to start work twenty minutes early. he started work when his digital watch had consecutive numbers. what time did he start work
Tuesday, November 13, 2012 at 5:17pm by Anonymous

physics
if a particle has work of 8J and doubles its speed. how much work it has done? Can we still determine work in this problem without mass
Thursday, March 4, 2010 at 7:02pm by eng

physics - work
Work = M g H M, g and H stand for mass, (acceleration of) gravity and height. Multiply them. Show your own work for further assistance.
Saturday, January 16, 2010 at 6:23am by drwls

physics
work=force*distance. The work he did is the same as work done on friction.
Wednesday, February 4, 2009 at 5:44pm by bobpursley

English
(1) Are you doing any volunteer work? How about your friends? 1. Yes, I am. They are doing (some) volunteer work, too. 2. No, I'm not. They are not doing (any) volunteer work, either. (2) Do you do any volunteer work? How about your friends? 1. Yes, I do. They do (some) ...
Thursday, November 18, 2010 at 4:58am by rfvv

English
A theme is best described as? A. A moral lesson presented in a work of literature B. The central idea or insight about life revealed in a literary work C. The subject of a work of literature D. A series of related events in a literary work I picked B but it siad it was wrong
Sunday, May 6, 2012 at 5:26pm by MM

physics
work= force*distance*cosine45= work= 35*.707*1.25*5280 horspower: work in ft-lbs/550
Saturday, May 5, 2012 at 8:48pm by bobpursley

Chemistry- please check my work
That's why we like to see your work. Seeing your work made me put those remarks in about the solids.
Wednesday, February 25, 2009 at 9:54pm by DrBob222

English
1) I think everybody should work at something he/she is passionate about, but many times this is not possible. 2) If I worked, I would work at a job to put money aside for myself and my family. 3) OK When I'll work, I will certainly work at a developing a career. 4) If ...
Wednesday, April 11, 2012 at 10:16am by Writeacher

Math-Derivatives.
Sorry to bother you, can you explain the steps to me, so I can see the work and check my work. I thought i had done it wrong, I started my work and then guessed.
Wednesday, March 24, 2010 at 10:50pm by Anonymous

math
In a problem like this, we need to know what is the fraction of work each achieves in a unit time, say a minute. If all three work together, add up the fraction of work they can do in one minute. The reciprocal is the time required in minutes. Each minute, Jim can do 1/30th of...
Sunday, November 29, 2009 at 8:02pm by MathMate

Physics
Which of the following is true? a. Conserved forces cannot do work b. Work can be performed on an object without moving it c. If the work is done by a conserved force, you do not need to know the path the object took d. To know the total work performed on an object you must ...
Saturday, February 26, 2011 at 5:19pm by Paige

Physics
How did you get 7.25? What are the dimensions of that number? The answer is not 7.25 Joules. Multiply the horizontal force component by the distance the block moves. That is how to compute the work done. The work done by friction is MINUS the work done by the person pulling. ...
Thursday, January 5, 2012 at 10:53pm by drwls

Physics(work done)
There is no work done by moving the load horizontally. The only work done is the lifting, which is equivalent to the potential energy gained by the block given by: Ep=mgh.
Tuesday, November 15, 2011 at 9:52pm by MathMate

fine arts
Describe what work the three brothers from Flanders are known for and how this work was illustrated. i think their most known work is the "Book of Hours" . but i need help in the second part
Friday, January 9, 2009 at 11:09am by y912f

AP Chemistry
I can work these problems. But no one here will do the work for you. We will help you through them if you will show your work to the point that you don't know what to do, then explain in detail what you don't understand about the next step.
Monday, January 5, 2009 at 11:07pm by DrBob222

Physics
A grocery cart with a mass of 18 kg is pushed at constant speed along an aisle by a force F = 12 N. The applied force acts at a 20° angle to the horizontal. Find the work done by each of the forces on the cart if the aisle is 14 m long. work done by the applied force work ...
Wednesday, November 18, 2009 at 5:53pm by Anonymous

physics
normal force on box: mg-25sin37 work done by rope: 25cos37*10+1/2 m(7^2-3^2) that is the work done by the pulling plus the change in KE. I will be happy to critique your work.
Wednesday, January 12, 2011 at 9:03pm by bobpursley

PHYSICS HELP
I am having a real problem with this question. Through the process of doing work, energy can move between the external world and the system as the result of forces or work. I say it's forces, but someone else says it's work because only work and energy can be ...
Wednesday, January 10, 2007 at 11:06pm by Pat

11th garde physics
A grocery cart with a mass of 18 kg is pushed at constant speed along an aisle by a force F = 12 N. The applied force acts at a 20° angle to the horizontal. Find the work done by each of the forces on the cart if the aisle is 17 m long. a)work done by the applied force=? b...
Saturday, February 13, 2010 at 3:32pm by Luricela

Word Problem
Every hour A finishes 1/4 of the work, and B finishes 1/8 of the work. Together they finish 3/8 of the work in one hour. How long would it take A and B to finish 8/8 of the work?
Wednesday, September 16, 2009 at 11:54am by MathMate

Science
where is a thermostat used where is a thermocouple used How does an outdoor thermomter work? How does a clinical thermometer work? How does a themostat work? How does a thermocouple work? If anyone knows the answer, please help! Thanks! ~Slappy~
Monday, December 1, 2008 at 6:18pm by Slappy

Physics (check)
The answer is correct. But, be careful in the work. In your work, you are using 1000kg when you mean 1000g or 1kg. You knew what you meant, but you might lose some points in the work.
Sunday, May 18, 2008 at 9:31pm by Quidditch

Physics
please check these: In which of the following sentences is WORK used in the scientific sense of the word? a. holding a heavy box requires a lot of work b. a scientist works on an experiment in the laboratory c. sam and rachel pushed hard, but they could do no work on the car d...
Monday, February 9, 2009 at 5:27pm by y912f

Physics
a skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we conclude from the work ...
Thursday, March 24, 2011 at 6:47pm by Otto

Physics Conservation of energy
A box is pushed across the floor against a constant frictional force. The box is pushed across the room to the east in 30 seconds and returned to its starting point (pushed to the west) in 60 seconds. Which of the following is true about the work done and the power expended in...
Monday, June 13, 2011 at 4:52pm by Casey

ethics question 2
Another thought -- if there isn't enough work to do -- then the employer may decide to cut staff so that each person has plenty of work each day. Goofing off at work is likely to cost people their jobs.
Friday, November 5, 2010 at 6:20pm by Ms. Sue

economics
With respect to work incentives, studies indicate that decreases in tax rates lead some people to work more but lead others to work less. Those who work more are enticed by the higher after tax pay; they substitute work for leisure because of the opportunity cost of leisure ...
Monday, December 14, 2009 at 9:28pm by Shaena B

Physics
work by snow: has to equal 1/2 m vterminal^2 average force: Force*distance=work done average work done on him? Only God knows what that means. averagework/second? avgwork/meter? work done=changein Potential energy-finalKE I have no idea what average means here.
Wednesday, November 18, 2009 at 12:00pm by bobpursley

IT 221
I'd say, "no problem, we can amend the work order." Then I would give the customer a new delivery date and a new cost estimate. Changes in work orders, are, for many many firms, the high-profit work of the firm. First and foremost, the changes in work-order are (...
Wednesday, January 7, 2009 at 7:04pm by economyst

English
Posted by rfvv on Wednesday, October 27, 2010 at 8:52am. 1. Do you do any volunteer work? How about your friends? 2. Yes, I do. They do volunteer work, too. 3. No, I don't. They don't do volunteer work, either. (Are the answers grammatical?) 4. Do you do any volunteer ...
Saturday, November 6, 2010 at 9:07am by rfvv

Physics
Work=mg*d and that is the energy the person absorbs. Work=mg*d is the work gravity does. Amazing, gravity does work on the person's arms, and he feels it.
Tuesday, November 17, 2009 at 5:34pm by bobpursley

math
For every minute, the officejet does 1/18 of the work, while the laserjet does 1/20 of the work. Together the two printers do (1/18+1/20)=19/180 of the work every minute. If the two work together, and assuming the work can be shared to keep the two busy all the time, the work ...
Sunday, September 20, 2009 at 2:15pm by MathMate

Physic
Hold one ball fixed (a virtual fixed). work the other ball does work=integral F dx= G.125^2/r^2 dr from 820 to 680 work= -G*.125^2 (1/820-1/680) figure that out. But we know in the real world, both balls moved, so divide that work by 2 to get the work done on each ball, and ...
Sunday, March 28, 2010 at 4:15pm by bobpursley

physics
I am not sure what they mean by "resultant work" The work done by the person pulling is 400*cos35*23 m= 7536 J Of that work, 150*23 = 3450 J is done against friction. The resultant force acting on the block does 7536-3450 = 4086 J of work.
Saturday, March 31, 2012 at 10:51am by drwls

physics
1. enough work must be done to reduce the Ke to zero so work = (1/2) m v^2 Joules 2. a= F/m = 5/4 m/s^2 3. work done by friction = initial Ke when it stops 5 * d = (1/2) m v^2
Friday, February 25, 2011 at 7:49pm by Damon

physical science
The useful work done (the potential energy increase) is M g H = 392 J The efficiency is (Work out)/(Work in) = 392/500 = __ %
Monday, February 11, 2008 at 5:46pm by drwls

physics
work= force*displacement since the question asks only for the work done of f1: Work(f1)=20N*.600m ans. 12J
Wednesday, November 7, 2012 at 7:08pm by Mickie

MATH
A does 8/15 of a work in 8 days and the remaining work is finished with the assistance of B in 4 days . how long will B take to do the work alone
Tuesday, May 1, 2012 at 10:27am by MAJUMDER

math
A does 8/15 of a work in 8 days and the remaining work is finished with the assistance of B in 4 days . how long will B take to do the work alone
Thursday, April 26, 2012 at 10:20am by majumder

math
A does 8/15 of a work in 8 days and the remaining work is finished with the assistance of B in 4 days . how long will B take to do the work alone
Sunday, April 22, 2012 at 9:57am by majumder

Physics (please help!!!!)
a skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we conclude from the work ...
Thursday, March 24, 2011 at 10:17pm by Otto

Physics (please help!!)
A skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we conclude from the work ...
Thursday, March 24, 2011 at 9:11pm by Otto

We don't do YOUR WORK
Absolutely, GuruBlue. It looks as though a few posters dump large and complex homework assignments on to this board in hopes that someone will do the work for them. I wonder who will do the work for them when they actually have a paying job??
Tuesday, September 11, 2007 at 4:31pm by Ms. Sue

physics
Applied force x distance moved = Work done Work done = 220 * 2.0 = 440 J The mass and friction force do not matter when computing work, but they do influence the acceleration rate.
Sunday, December 4, 2011 at 9:56pm by drwls

Physics
(c) Calculate the work done by the friction force. -3937.6J (d) What is the work done by the force of gravity? 5684J (e) What is the net work done on the piano? 0J (zeroJ) don't know A & b yet! sorry
Wednesday, March 2, 2011 at 10:14pm by md8

physics
Forces that are not applied in the direction of movement does no work. The movement is horizontal. a. Work = F*d = 12*cos25 * 2.8 = 30.5 J. 12*cos25 = Hor. component of applied force. b. No work done. c. No work done. d. Same as a.
Friday, October 12, 2012 at 12:10am by Henry

physics
total work done: zero. He lifted the chair, and put it back down. In the first, he did work against gravity. Then walking, he did no work. At the end, gravity did work on the chair: total: zero
Monday, November 7, 2011 at 7:46pm by bobpursley

chem- repost
work at constant temp and pressure, will be pressure*deltaV in this case, you get two volumes of product S8(s)+4O2>>8SO2 work= p*dV on a per S8 mole basis, work= 101.3kPa*4*22.4dm^3*1m^3/1000dm^3 work= above in Joules check my thinking
Sunday, April 17, 2011 at 7:20pm by bobpursley

physcial science
a) Work = Force x Distance The Force in this case is Mass*(acceleration of gravity), so Work = 50 kg*9.8 m/s^2*10 m = __ Newtons b) Power = Work/Time
Monday, February 11, 2008 at 5:29pm by drwls

Physics
work done by man: 4h*1/4 Weigh=wh work work done on crate: weight*h=wh
Sunday, November 14, 2010 at 9:26pm by bobpursley

Physics (please help!!!!)
A skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we conclude from the work ...
Friday, March 25, 2011 at 12:04am by Otto

Physics
An object of mass .550kg is lifted from the floor to a height of 3.5m at a constant speed. How much work is done by the lifting force (include units)? b.) How much work is done by the Earth on the object? c.) What is the net work done on the object? d.) What is the change in ...
Sunday, December 9, 2012 at 8:28pm by Tim

communication
The concept of "work ethic" is closely linked to motivation because: motivation and ethics each guarantee you will work hard. people with a strong work ethic believe in hard work. people with a strong work ethic always are successful. motivation and ethics aren't...
Monday, June 28, 2010 at 9:10pm by ros

java programming
You need to provide more than a yes or no answer for this question. Consider both the selection sort and the bubble sort. If these algorithms will work with duplicates explain why they will still work. If they will not work, explain why they will not work. If one will work and...
Saturday, July 29, 2006 at 11:00pm by george

Chemistry
Work the problems. Understand what you work and understand the definitions. Memorizing problems won't work. Memorizing definitions won't work if you don't understand them. Talk with your teacher and ask if he/she can pinpoint the problem you are having. If you are ...
Sunday, October 14, 2007 at 4:29pm by DrBob222

statistics
We do not do your work for you. Once you have attempted to answer your questions, we will be happy to give you feedback on your work. Although it might require more time and effort, you will learn more if you do your own work.
Tuesday, February 14, 2012 at 9:22pm by PsyDAG

Physics
Work done AGAINST friction = (P.E loss) - (K.E. gain) = M g H - (1/2)M V^2 (V is the speed when it hits the water) The angle of the ramp doesn't matter when computing the answer, but it does affect how much frictional work is done The work done BY the friction is negative
Thursday, December 16, 2010 at 10:02pm by drwls

Physics
The work done is force x distance The power used is the rate of doing work, i.e. work/time Note that the word for the unit of force, newton, has a lower case 'n' whereas the symbol has a capital 'N'.
Monday, October 4, 2010 at 9:46am by Dr Russ

physics
Show your work and I will provide help. If you don't show any work or thought, perhaps another teacher will still help you. No one seems to be showing any work anymore at this website. I have reached my limit of patience.
Tuesday, September 30, 2008 at 11:14am by drwls (quitting)

Business Law
Which of the following is true about determining whether someone working for another is an independent contractor or an employee? a) The classification of the person doing the work depends on that person's job title. b)The classification of the person doing the work ...
Thursday, April 12, 2007 at 2:44am by Gurv

physics
a. work= mg*940sin9.5 b. work= work above+mg*mu*distance
Wednesday, March 3, 2010 at 2:28pm by bobpursley

Physics 221
Initial KE + work done=FinalKE FinalKE-InitialKE=work done 1/2 m (6^2-4^2)=work done
Thursday, December 10, 2009 at 1:15pm by bobpursley

Physics
h t t p : / / i m g 2 0 5 . i m a g e s h a c k . u s / i / c a p t u r e b b . j p g / i am stuck on part c how do i find work with out using the spring constant work equals force parallel times displacement at which the force is acted during... Work done by spring = .5 kx^2 ...
Sunday, February 28, 2010 at 8:35pm by Kate

math
We do not do your work for you. Once you have answered your questions, we will be happy to give you feedback on your work. Although it might require more time and effort, you will learn more if you do your own work. Isn't that why you go to school?
Monday, November 8, 2010 at 5:19am by PsyDAG

Epidemiology
We do not do your work for you. Once you have answered your questions, we will be happy to give you feedback on your work. Although it might require more time and effort, you will learn more if you do your own work. Isn't that why you go to school?
Sunday, October 17, 2010 at 5:06pm by PsyDAG

statistics
We do not do your work for you. Once you have answered your questions, we will be happy to give you feedback on your work. Although it might require more time and effort, you will learn more if you do your own work. Isn't that why you go to school?
Tuesday, October 12, 2010 at 3:30am by PsyDAG

Spanish
We do not do your work for you. Once you have answered your questions, we will be happy to give you feedback on your work. Although it might require more time and effort, you will learn more if you do your own work. Isn't that why you go to school?
Friday, September 10, 2010 at 9:26am by PsyDAG

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