It can be used to determine the masses of many distant objects. :P
The energy that is not useful is called waste energy. It is the energy that is not harnessed or converted into a form that can be utilized for work or other useful purposes.
Sandpaper is high in friction but is not considered useful in terms of being helpful in a general sense.
stopping cars Friction is useful to start a fire with sticks.
That may refer to the system's efficiency (which is formally the amount of useful output power divided by the amount of input power).
The percentage of energy put into a system that does useful work is known as efficiency. It is calculated by dividing the useful work output by the total energy input and multiplying by 100%.
It can be used to determine a Stars lifetime, its different stages.
Since the numbers astronomers use are often very large or very small, they frequently use scientific notation to describe sizes and sentences in the universe.
1.9 X 1027 kilograms ------------------------ This is the mass of Jupiter. Try writing that out in longhand and you will see why scientific notation is useful to astronomers. Very large numbers in astronomy need a way to write them in a useful and compact form.
Astronomers find the electromagnetic spectrum most useful during their observations and research. This spectrum includes various types of radiation such as visible light, radio waves, X-rays, and gamma rays, which provide valuable information about the properties and behavior of celestial objects. By studying different wavelengths of light, astronomers can gain insights into the composition, temperature, and movement of objects in the universe.
they help us "map out" the sky, and almost like sectioning off places so astronomers can say, "the star we are looking at resides in the Draco constellation" and all the other astronomers can have an understanding of the general area they should be looking at
A Spring is useful in "storing" energy. It is also useful to provide a "measured resistance" to counter-act an opposing force or energy. Or to determine "mass", or gravity expressed as newtons , or plain old lbs or weight. A spring can be useful in many ways. It can reduce shock to components ,vehicles and even bldg's.
In my opinion, Reshiram is more useful in this version. If you have a Zekrom in the Hoenn region ,however, Zekrom will prove very useful there.
The cons of using a cheap version of Adobe is that the cheap version does not offer all the extensive abilities that the pro Adobe does. A cheap version might not be as useful as well.
A version tracker is used to track software releases. If one desires to use an older version of a software (for example, when compatibility issues arise), a version tracker is useful.
The Stonehenge my friend was an Observatory that was said to be used to map stars, or so I have read.
You can, but it won't be able to do anything useful on >2.9.
Because it is a large number, suitable for large distances. Astronomers also like to use the unit Parsec.