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Elastic Collision

A collision occurs when two objects come in direct contact. It is the event in which two or more bodies exert forces on each other in about a... View Article

Moseley’s Law

Soon after Rutherford's scattering theory had been confirmed by experiment (about 1913), the one-to-one association of an atomic number Z with... View Article

The Concept of Pressure

Have you ever wondered why our knives need to be so sharp or why the nails we use the end with a sharp point? The answers to all these questions... View Article

Magnetic Field

The magnetic field is the area around a magnet in which the effect of magnetism is felt. We use the magnetic field as a tool to describe how the... View Article

Static Friction

Friction can be defined as the force resisting the relative motion of fluid layers, solid surfaces and material elements sliding against each... View Article

Latent Heat of Water

In talking about the heats involved in changing temperatures, one thing we’ve neglected is what happens when a material changes phase. We talked... View Article