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In order to accomplish nuclear fusion, the particles involved must first overcome the electric repulsion to get close enough for the attractive nuclear strong force to take over to fuse the particles.
Kevlar is a material so strong it stops bullets! Find out why Kevlar is so strong. And learn how research facilities like the Advanced Light Source can reveal the details of Kevlar's structure.
String tension, weight of suspended sphere and beam and reaction force of the wall on the beam are shown in different colours and can be varied
Shows how the normal force, friction and total force change when the body's weight, the coefficient of friction or angle of incline are changed.
Simulated experiment on the parallelogram of forces rule
Revision guide for UK A Level covering forces, including newton's laws, friction, terminal velocity, etc
Glossary of terms and mathematical derivations for various forces.
This site discusses the concepts of electric force fields and lines of force.
This site allows you to convert between a wide variety of Force units.
One of the foundation concepts of physics, a force may be thought of as any influence which tends to change the motion of an object.
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