Science

Refine Search

How do earthquakes affect the atmosphere?

Methane is composed of one atom of carbon and four atoms of hydrogen. It is an abundant compound and is a part of natural gas. Methane's role as a fuel is countered by the difficulty in harvesting, containing and transporting it in a gaseous state. Methane is naturally found under the earth and under the sea floor. Although methane has a negative presence in the atmosphere due to degrading the ozone layer, its levels are held in check by its chemical reaction with hydroxyl radicals. When methane expires, it is usually converted into water and carbon dioxide. The Industrial Revolution and ..

Continue Reading

Does the dielectric constant have units?

Permittivity describes the distortion of the atomic charge in an insulator in the presence of an electric field. A vacuum, by definition, has a permittivity value of one, and it is this value that is used as the denominator in the ratio. The dielectric constant is used to characterize capacitors, which are capable of storing electric charge. Every material has a dielectric constant, and it is the material that makes up the dielectric that determines how effective the capacitor is at storing charge.\nDry air, a perfect vacuum and pure, dry gases have low dielectric constants. Materials with mod..

Continue Reading

What happens when electrons lose energy and return to their initial or ground state?

Electromagnetic waves, including light, are considered to have a dual nature, as they exhibit properties of both waves and particles. A "particle" of light is called a photon. It has no mass but travels at the speed of light and behaves like a particle. Electrons in an excited state jump to higher energy orbits for a very short period of time. When the excited electrons lose energy to return to ground state, they generally release the energy as photons. The wavelength of the photon emitted depends on the energy that is lost, and sometimes, the wavelength of the photon falls under the visible l..

Continue Reading

How do you convert a linear foot to a square foot?

A linear foot describes the distance of 12 inches across a straight line, but a square foot describes a 144-square inch area of space.\nBy utilizing the mathematical formula, A = L x W, one can calculate the area of a square or rectangle. "A" stands for area, "L" stands for length, "x" stands for multiply, and "W" stands for width. The units of measure, such as centimeters or inches, for L and W should be the same. When you multiply the length and width together, the original unit of measure changes to square units of measure, such as centimeters into square centimeters.

Continue Reading

What are the chemical reaction equations for acid rain?

Acid rain refers to any kind of precipitation that transports nitrogen and sulfur compounds to the Earth's surface. The nitrogen oxides and sulfur oxides that form acid rain come from both man-made and natural sources. The extreme atmospheric temperatures that are produced by lightning during thunderstorms are a natural source of nitrogen oxides. Sulfur oxides in the atmosphere result from decaying vegetation at the Earth's surface and from volcanic eruptions.Man-made sources for the sulfur and nitrogen compounds that form acid rain are the by-products resulting from the burning of f..

Continue Reading

What is the function of the triceps brachii?

The long head runs from the shoulder blade to the elbow and also assists in stabilizing the shoulder joint. The lateral head of the biceps brachii originates from the back surface of the humerus bone in the upper arm, extending down to the elbow. The medial head also originates from the back surface of the humerus, but it is mostly covered by the long and medial heads.

Continue Reading

Is SO3 polar?

There are two sources for polarity in molecules. The first source is the difference in electronegativity between the atoms. Electronegativity is a measure for the attraction between the nucleus and the bonded pair of electrons in a covalent molecule. For example, an oxygen molecule, made up of two oxygen atoms bonded together, is non-polar because both atoms have the same electronegativity. But carbon monoxide is polar because carbon has a lower electronegativity than oxygen, which results in a greater pull of the bonded pairs of electrons towards the oxygen. This results in an overall polarit..

Continue Reading

How do ball bearings reduce friction?

Ball bearings are typically mounted in rotating assemblies in which one race is stationary, such as the outer race when pressed into a housing, while the other race rotates with the shaft. The separation of the races by the balls reduces the friction that would've been present between the shaft and housing. The balls allow the inner race of the bearing to rotate independently of the outer race while also carrying the load transmitted through the races.

Continue Reading

How do you make starch solution?

Starch solutions are useful for laundry, adding stiffness to clothing, making ironing easier and adding a polished look to items. In addition to spraying on dry clothes, a starch solution can be added to the rinse cycle in the washer. Do not store any starch solution in the refrigerator. Shake the bottle well before using.

Continue Reading

What specific phylum do fish belong to?

The phylum has three major subphylums: Tunicata, Cephalochordata and Vertebrata. The third subphylum includes jawed and jawless infraphylums. Jawed fish contain three superclasses: four-limbed animals called tetrapods, cartilaginous fish such as sharks, and bony fish that comprise the majority of fish species. Other species such as hagfish, lancets and lampreys exist outside the superclass of bony fish, but they are not considered true fish.

Continue Reading
Showing 601 to 610 of 10000 (1000 Pages)