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Conservation of mass print that page

The law of conservation of mass , also known as the principle of mass /matter conservation , states that the mass of a closed system (in the sense of a completely isolated system) will remain constant over time. This principle is equivalent to the conservation of energy, in the sense

wikipedia.org | 2011/9/30 0:13:12

Mass in special relativity print that page

The term mass in special relativity usually refers to the rest mass of the object, which is the Newtonian mass as measured by an observer moving along with the object. The invariant mass is another name for the rest mass of single particles. The more general invariant mass (calculated

wikipedia.org | 2011/9/14 22:26:30

Mass balance print that page

A mass balance (also called a material balance) is an application of conservation of mass to the analysis of physical systems. By accounting for material entering and leaving a system, mass flows can be identified which might have been unknown, or difficult to measure without this technique

wikipedia.org | 2011/4/29 2:14:32

Conservation biology print that page


The term conservation biology was introduced as the title of a conference held at the University of California, San Diego in La Jolla, California in 1978 organized by biologists Bruce Wilcox and Michael E. Soulé . The meeting was prompted by the concern among scientists over tropical deforestation

Energy conservation print that page


Energy conservation can result in increased financial capital , environmental quality, national security , personal security , and human comfort . [ citation needed ] Individuals and organizations that are direct consumers of energy choose to conserve energy to reduce energy costs and promote

Mass–energy equivalence print that page


In physics , mass–energy equivalence is the concept that the mass of a body is a measure of its energy content. In this concept the total internal energy E of a body at rest is equal to the product of its rest mass m and a suitable conversion factor to transform from units of mass

Conservation of energy print that page

The law of conservation of energy is a law of physics. It states that the total amount of energy in a system remains constant over time (is said to be conserved over time). A consequence of this law is that energy can neither be created nor destroyed: it can only be transformed from one

wikipedia.org | 2011/5/25 22:08:37

Energy print that page


along a path of a certain length. The total energy contained in an object is identified with its mass , and energy (like mass ), cannot be created or destroyed. When matter (ordinary material particles) is changed into energy (such as energy of motion, or into radiation), the mass of the

Special relativity print that page


postulates of special relativity predict the equivalence of matter and energy , as expressed in the mass–energy equivalence formula E  =  mc 2 , where c is the speed of light in a vacuum. [ 6 ] [ 7 ] The predictions of special relativity agree well with Newtonian mechanics in their

Bernoulli's principle print that page


derivations of the Bernoulli equation ). Bernoulli's principle can be derived from the principle of conservation of energy . This states that, in a steady flow, the sum of all forms of mechanical energy in a fluid along a streamline is the same at all points on that streamline. This requires