energy density
41Energy policy of the United States — The energy policy of the United States is determined by federal, state and local public entities in the United States, which address issues of energy production, distribution, and consumption, such as building codes and gas mileage standards.… …
42Density — This article is about mass density. For other uses, see Density (disambiguation). The mass density or density of a material is defined as its mass per unit volume. The symbol most often used for density is ρ (the Greek letter rho). In some cases… …
43Energy content of biofuel — A Table of Energy Content and CO2 Output of Common Fuels Energy is the ability to do work. Per kilogram of mass, different substances can do different amounts of work.cite web url=http://bioenergy.ornl.gov/papers/misc/energy conv.html… …
44density — /ˈdɛnsəti / (say densuhtee) noun (plural densities) 1. the state or quality of being dense; compactness; closely set or crowded condition. 2. stupidity. 3. Physics a. the mass per unit of volume. b. the amount per unit of volume or per unit of… …
45Energy Policy Act of 2005 — Enacted by the 109th United States Congress Citations Public Law …
46Energy security — is a term for an association between national security and the availability of natural resources for energy consumption. Access to cheap energy has become essential to the functioning of modern economies. However, the uneven distribution of… …
47Energy-dispersive X-ray spectroscopy — (EDS, EDX or EDXRF) is an analytical technique used for the elemental analysis or chemical characterization of a sample. As a type of spectroscopy, it relies on the investigation of a sample through interactions between electromagnetic radiation… …
48Density gradient — is a spatial variation in density over an area. The term is used in the natural sciences to describe varying density of matter, but can apply to any quantity whose density can be measured. [1] [2] Contents 1 Aerodynamics 2 …
49Density — The mass of a unit volume of a substance …
50Density of states — Condensed matter physics Phases · Phase tr …
