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A simple machine uses a single applied force to do work against a single load force. Ignoring friction losses, the work done on the load is equal to the work done by the applied force. The machine can increase the amount of the output force, at the cost of a proportional decrease in the distance moved by the load.
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The ancient Greek understanding of physics was limited to the statics of simple machines (the balance of forces), and did not include dynamics or the concept of work. During the Renaissance the dynamics of the Mechanical Powers, as the simple machines were called, began to be studied from the standpoint of how far they could lift a load, in addition to the force they could apply, leading ...
This image is a derivative work of the following images: File:Force.png licensed with PD-self . 2007-12-28T22:31:03Z Penubag 316x316 (33426 Bytes) {{Information |Description= A few images illustrating forces |Source=self-made using compiled images within Wikipedia or created by me through MS Word |Date= 12/28/07 |Author= [[User:Penubag|Penubag]] |Permission= No rights r
The normal force, for example, is responsible for the structural integrity of tables and floors as well as being the force that responds whenever an external force pushes on a solid object. An example of the normal force in action is the impact force on an object crashing into an immobile surface. [4]: ch.12 [5]
Contact forces are often decomposed into orthogonal components, one perpendicular to the surface(s) in contact called the normal force, and one parallel to the surface(s) in contact, called the friction force. [1] Not all forces are contact forces; for example, the weight of an object is the force between the object and the Earth, even though ...
The largest elite boards accepted users by invitation only. Elite boards also spawned their own subculture and gave rise to the slang known today as leetspeak. Another common type of board was the support BBS run by a manufacturer of computer products or software. These boards were dedicated to supporting users of the company's products with ...
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