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Topic: Mechanical work


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  Mechanical work Encyclopedia   (Site not responding. Last check: 2007-10-05)
The SI derived unit of work is the joule (J), which is defined as the work done by a force of one newton acting over a distance of one meter.
One mechanism of heat conduction is collisions between fast-moving atoms in a warm body with slow-moving atoms in a cold body.
The mechanical energy of a body is that part of its total energy which is subject to change by mechanical work.
www.hallencyclopedia.com /topic/Mechanical_work.html   (1382 words)

  
  Mechanical work - Wikipedia, the free encyclopedia
The SI derived unit of work is the joule (J), which is defined as the work done by a force of one newton acting over a distance of one meter.
One mechanism of heat conduction is collisions between fast-moving atoms in a warm body with slow-moving atoms in a cold body.
The mechanical energy of a body is that part of its total energy which is subject to change by mechanical work.
en.wikipedia.org /?title=Mechanical_work   (1069 words)

  
 PowerPedia:Mechanical work - PESWiki
Mechanical work is a force applied through a distance, defined mathmatically as the line integral of a scalar product of force and displacement vectors.
When a given quantity of mechanical energy is transferred (such as when throwing a ball, lifting a box, crushing a can, or stirring a beverage) it is said that this amount mechanical work has been done.
Both mechanical energy and mechanical work are measured in the same units as energy in general.
peswiki.com /index.php/PowerPedia:Mechanical_work   (2157 words)

  
 The Physics Classroom
Work is a force acting upon an object to cause a displacement.
Mechanical energy is the energy which is possessed by an object due to its motion or its stored energy of position.
Because of the springs have mechanical energy (in the form of elastic potential energy), it is able to do work on the dart.
www.physicsclassroom.com /Class/energy/U5L1d.html   (1285 words)

  
 -- Department of Mechanical Engineering --
Mechanical engineering is a broad field primarily concerned with the principles of motion, energy, and force.
Mechanical engineers are called upon to design machinery, mechanisms and systems that function safely, reliably, and efficiently to serve needs of society.
Mechanical engineers are employed by the government and universities contribute to the betterment of society by conducting research to solve present and future problems.
www.ndsu.nodak.edu /me   (281 words)

  
 The Physics Classroom
Whenever work is done upon an object by an external force, there will be a change in the total mechanical energy of the object.
If it can be assumed that no external forces are doing work upon the car as it travels from the initial summit to the end of the track (where finally an external braking system is employed), then the total mechanical energy of the roller coaster car is conserved.
While assumption that mechanical energy is conserved is an invalid assumption, it is a useful approximation which assists in the analysis of an otherwise complex motion.
www.physicsclassroom.com /Class/energy/U5L2bb.html   (1266 words)

  
 The Tartan Online : How Things Work: Mechanical hearts
Shortages in treatment for heart-failure patients has led researchers to develop mechanical hearts that are capable of doubling people’s life expectancies.
This air-driven mechanical heart performs the work of the ventricles and four heart valves.
The pump pushes fluid to the left and right of the heart through the porting valve, causing blood to circulate to the lungs and throughout the body.
www.thetartan.org /2006/11/13/scitech/htw   (648 words)

  
 Mechanical work
Work is a scalar quantity, but it can be positive or negative.
Forms of work that are not evidently mechanical, such as electrical work, can be considered as special cases of this principle; for instance, in the case of electricity, work is done on chargedd particles moving through a medium.
The SI derived unit of work is the Joule, which is defined as the work done by a force of one newton acting over a distance of one metre in the direction of the force.
www.wikimoz.org /wiki/en/wikipedia/m/me/mechanical_work.html   (397 words)

  
 Kids.Net.Au - Encyclopedia > Mechanical work
In Newtonian mechanics, work is a measure of energy expended in applying force over a distance.
In modern physics, the term energy is generally used to refer to all forms of energy, including mechanical work.
The SI derived unit of work is the Joule.
www.kids.net.au /encyclopedia-wiki/me/Mechanical_work   (94 words)

  
 Do I need a mechanical permit?
Mechanical work on one- or two-family dwellings includes work on heating, cooling, or ventilation systems, including bath vents and woodstoves.
Mechanical permit fees are generally based on the number of appliances, chimneys, vents, or gas piping outlets that will be installed.
A friend, neighbor, tenant, or family relative cannot legally receive compensation for the work unless he or she is a CCB-registered contractor.
www.permitsprotect.info /mechanical.html   (593 words)

  
 Mechanical
The work must be so extensive that the work area cannot be occupied and a new certificate of occupancy is required for the space.
As a minimum, mechanically ventilated spaces shall be provided with 5 CFM per person of outdoor air and 15 CFM of ventilation air per person unless the indoor air quality procedure of ASHRAE 62-89 is followed and results in a lesser amount.
Work associated with the change of use must comply with the repair, renovation, alteration or reconstruction work portion of the code as appropriate.
www.state.nj.us /dca/codes/rehab/mechanicalappendix.htm   (1280 words)

  
 Mechanical Engineering - Careers in ME
Mechanical Engineers are also found in upper management positions, in the legal and medical professions, and in research at the cutting edge in several important technical areas.
Mechanical engineering is a profession conceded with devices that perform a nearly infinite variety of tasks involving mechanical work and energy conversion.
This includes the conversion of solar, chemical, or nuclear energy into mechanical work through various engines and powerplants; the transporting of energy via heat exchangers, pipelines, linkages, and air conditioners; and the harnessing of energy to perform tasks useful to society through land, sea, air, and space vehicles, machine tools, home appliances, and agricultural machinery.
www.mecheng.ohio-state.edu /students/careers.html   (816 words)

  
 career option- mechanical engineering Education in India
Mechanical engineering, the broadest of all Engineering disciplines deals with design and production of tools, machines and all other mechanical equipment to be used in industries.
The work of a Mechanical Engineer can be extremely challenging and fulfilling, requiring IT, design and analytical skills together with an ability to work as a team.
As their work involves production, transmission and use of mechanical power and heat, they have to analyse the different materials used for the machines and their tolerances, investigate the different energy sources and the power they generate and the design problems if any.
www.webindia123.com /career/options/eng/mecha/intro.htm   (471 words)

  
 Mechanical work
However, an alternative method is in the measurement of mechanical energy, in which no cumbersome instrumentation is required and the patient does not have to walk for a long period of time in order to reach a consistent reading, as in the case with oxygen consumption.
Since mechanical work has been previously found to be highly correlated with oxygen consumption, it would be more practical to use mechanical work in place of oxygen consumption in a pediatric clinical setting.
Therefore, the purpose of this investigation is to measure mechanical work to determine if children with spastic cerebral palsy (CP) require more energy to walk than normal children do.
www.sandiegogaitlab.com /mechwork.htm   (309 words)

  
 BC Work Futures - Occupational Profile
Mechanical engineers are employed by consulting firms, power generating utilities and in a wide range of manufacturing, processing and transportation industries, or they may be self-employed.
For full-time work, mechanical engineers earned an average of $52,000 per year and electrical and electronics engineers earned an average of $70,500 per year.
Mechanical engineers are projected to account for 1,400 of the total openings for this group and the remaining 390 openings are projected to become available for chemical engineers.
www.workfutures.bc.ca /profiles/profile.cfm?site=txt&noc=213&lang=en   (2494 words)

  
 Work
Work is associated with forces that overcome resistance.
Work W was performed in raising mass B, while mass A has given up its potential energy.
Note that our working definition "energy is anything that can turn a machine" also holds, since a dropping weight could indeed turn a machine.
www.phy6.org /stargaze/Swork.htm   (668 words)

  
 Entry Level Mechanical Engineering
Mechanical engineers work in many industries, and their work varies by industry and function.
Mechanical engineers may work in production operations in manufacturing or agriculture, maintenance, or technical sales; many are administrators or managers.
Although overall employment in manufacturing industries—where employment of mechanical engineers is concentrated—is expected to decrease slightly, employment of mechanical engineers in manufacturing should increase more rapidly as the demand for improved machinery and machine tools grows and as industrial machinery and processes become increasingly complex.
www.collegegrad.com /entrylevel/entrylevelmechanicalengineering.shtml   (630 words)

  
 Section 5-198 Permits.   (Site not responding. Last check: 2007-10-05)
Permits to do mechanical work will be issued only to a conditioned air contractor with a current state license or, for other mechanical work covered by section 5-171, to a person presenting evidence of his qualifications to hold a license.
Application blanks for mechanical work, installing or connecting or constructing such mechanical work shall be furnished by the city.
Application for such permit, describing the work to be done, shall be made in writing to the mechanical inspector by the contractor installing the work.
www.rose.net /citycode/Chapter_5/198.html   (191 words)

  
 Gettech.org - Mechanical Engineer   (Site not responding. Last check: 2007-10-05)
Mechanical Engineers research, design and develop effective and efficient systems for heating; ventilating and air conditioning; power generation; transportation; processing and manufacturing.
Actually, mechanical engineers seem to have their hands in all kinds of things, and their work turns up all over the place.
Regardless of what duties or mechanical processes a Mechanical Engineer is responsible for, math skills will be an important part of their work.
www.gettech.org /career_desc.asp?job_id=34&cat_id=5   (731 words)

  
 The University of Maine - Department of Mechanical Engineering
In the words of one author, the mechanical engineer applies scientific methods to the solution of mechanical problems.Indeed, the numerous laws and principles developed by scientists are the everyday tools of the mechanical engineer.
Mechanical engineers also work alongside physicians, therapists, and other medical professionals to investigate the workings of the human body and to design aids and instruments for medicine.
A mechanical engineer is not a builder in the sense of the eighteenth century craftsmen and millwrights who built machine parts for mill buildings.
www.umaine.edu /MechEng/whatis.htm   (1181 words)

  
 City of Long Beach, CA - Mechanical Code
Permits are available to owners of single-family dwellings and two family dwellings provided the owner or a member of the immediate family installs the work, and the owner resides or intends to reside in such dwelling.
Permits become null and void if work authorized is not commenced within 180 days of the issuance or if such work is suspended or abandoned at any time after the work is commenced for a period of 180 days.
A separate mechanical permit shall not be required for any mechanical work involving a Group R, Division 3 or Group M Occupancy for which a combined permit has been obtained pursuant to Section 18.12.010.
www.longbeach.gov /plan/h4hb/mechanical_code.asp   (725 words)

  
 University of Windsor - Mechanical2003website- - Welcome
Mechanical, Automotive, and Materials Engineering is the largest department in the Engineering Faculty at the University of Windsor, with over 250 undergraduate and 50 graduate students.
Mechanical engineers are responsible for the design, analysis, construction, maintenance, and operation of machines and systems in a number of industry sectors, such as automotive, aerospace, power generation, manufacturing, steel, and pulp and paper.
Mechanical engineers commonly go beyond the limits of purely mechanical work, and are found at all levels of management in private industry and the public sector.
www.uwindsor.ca /mame   (200 words)

  
 FAU Department of Mechanical Engineering FAQs
Mechanical Engineering is a very diverse field and provides a wide range of career opportunity.
Mechanical engineers are found in every engineering organization, from large companies such as Pratt and Whitney and Motorola to small engineering firms specializing in consulting services.
Although a bachelors degree is required to be employed as a mechanical engineer, an advanced education to the masters degree level may be necessary if the student's interests are in the areas of design or research work.
www.me.fau.edu /faqs.htm   (573 words)

  
 Mechanical Engineering   (Site not responding. Last check: 2007-10-05)
Today's mechanical engineers might search the ocean with an underwater observation manipulator; be an astronaut; work on developing systems to program robots for manufacturing; build a prototype of an electric car; or develop computer systems for automobiles.
Mechanical engineering students at the Woodruff School learn about the design and production of tools and machines and their products; the consideration of the fundamental characteristics of materials as applied to design; and the synthesis and analysis of mechanical, thermal, and fluid systems.
The junior and senior years are devoted to the mechanics of materials, applied mechanics, thermodynamics, heat transfer, fluid mechanics, systems and control, design, manufacturing, and the application of fundamentals to the diverse problems of mechanical engineering.
www.me.gatech.edu /me/publicat/brochures/ugbme.html   (3897 words)

  
 Rowan University | Mechanical Engineering   (Site not responding. Last check: 2007-10-05)
For specific examples of projects that Rowan mechanical engineering students work on as they learn the science, skills, and art of engineering, please follow this link to the "Engineering Clinics" page.
Mechanical engineering course work has a solid core in mathematics, physics, chemistry, and the engineering sciences.
Mechanical engineering is also computer oriented in that the computer is used extensively for problem solving and engineering design.
www.rowan.edu /open/colleges/engineering/departments/mechanical/intro.htm   (501 words)

  
 St. Louis County Government, Department of Public Works, Mechanical Licensing Requirements
Work exempted from licensing has been revised to eliminate the exemption of commercial heating and air-conditioning work that involves 7 ½ tons or less of air-conditioning and 300,000 or less BTU's of heating.
This provision generally relates to those situations where the denied applicant feels that the Board may not have fully considered all his or her work experience of similar nature and technical requirements as the work that requires the License applied for.
Abstracts of the revised provisions of the Mechanical Code on licensing of mechanical work, including new categories of licenses, exceptions, etc., can be obtained at the Satellite and Clayton Government Offices.
www.co.st-louis.mo.us /pubworks/MechCodeLicRequirements.html   (615 words)

  
 JOB SPEC - MECHANICAL PLANS ENGINEER, JOB CODE 23530
The fundamental reason this classification exists is to manage and direct the Mechanical Plans Review Section in the examination of complex plans for new construction, alteration, and repairs for compliance with the City plumbing and mechanical codes.
Supervision is exercised over Mechanical Plans Examiners I and II and technical advice and assistance are given to architects, engineers, contractors, and field inspectors on mechanical and plumbing problems.
Work includes interpreting plumbing/mechanical plans, solving unusually difficult code interpretation and design problems, and assisting in the development of plumbing/mechanical construction codes.
www.ci.phoenix.az.us /JOBSPECS/23530.html   (652 words)

  
 Physics 30: Mechanical Energy - Work
Work (W) is the product of an applied force and the displacement of an object in the direction of the applied force.
One joule (J) is the amount of work done when an applied force of one newton produces a displacement of one metre.
Work can be determined graphically by finding the area under an applied force versus displacement graph.
www.sasked.gov.sk.ca /docs/physics/u2a3phy.html   (601 words)

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