Category: Physics

What are the four stages in the life cycle of a low mass star? Stars about the size of our sun go through the same first four stages as does any other star. They begin their lives as a nebula, then become a Protostar, eventually becoming a main sequence star and finally a red giant. […]

What are two examples of liquid? Examples of Liquids Water. Milk. Blood. Urine. Gasoline. Mercury (an element) Bromine (an element) Wine. What are two examples of a gas? Examples of Gases Hydrogen. Nitrogen. Oxygen. Carbon Dioxide. Carbon Monoxide. Water Vapour. Helium. Neon. What are the common gases? Common gases include Acetylene, Argon, Carbon Dioxide, Helium, […]

How do you know if a sample is representative? A representative sample should be an unbiased reflection of what the population is like. There are many ways to evaluate representativeness—gender, age, socioeconomic status, profession, education, chronic illness, even personality or pet ownership. What percentage of sample is representative? For example, in a population of 1,000 […]

Why do we use 8.314 as the value for R? R = 8.314 is actually the more important value because it is expressed in SI units (note that 1 J = 1 Pa * m^3= 1 N/m^2 * m^3 = 1 N * m). What does R mean in chemistry? R group: An abbreviation for […]

Do neurons allow us to think? In short, our nervous systems detect what is going on around us and inside of us; they decide how we should act, alter the state of internal organs (heart rate changes, for instance), and allows us to think about and remember what is going on. To do this, it […]

Can you run jet fuel in a diesel? Jet fuel (there’s variants, but a very common one is known as Jet A) is really close to regular old diesel fuel. And, for that matter, kerosene. You can even run it straight in your diesel car or truck, though it doesn’t lubricate as well so if […]

What is the full form of laser? Light amplification by stimulated emission of radiation What are the uses of laser technology? Lasers are widely used for laser material processing in manufacturing, e.g. for cutting, drilling, welding, cladding, soldering (brazing), hardening, surface treatment, marking, engraving, micromachining, pulsed laser deposition, lithography, etc. What is Laser What are […]

Is it a look or take Alook? The difference between “have a look” and “take a look” is geographical rather than semantic. The former phrase is usually used in the UK, whereas the latter is usually used in the USA. Is have a look formal? Both of the sentences that you suggested are grammatically correct, […]

What does emission mean? An emission is something that has been emitted—released or discharged. In general, emissions consist of things like gas, liquid, heat, sound, light, and radiation. This exhaust is just one form of carbon emissions—greenhouse gases from various sources that are known to contribute to global warming and climate change. What is emissions […]

How quickly does Peat form? Peat is formed by decomposition and accumulation process of plant materials that grow on the land which is influenced by dry and wet season period. Peat formation occurs in a long period with the formation rate of about 1 mm per year (Charman, 2002), which means 1 m deep peat […]