In simple terms, "Magnitude" means "Largeness". Magna is the root of magnitude, and means large.
a simple machine is a mechanical device
Apparently a magnitude estimate is just a estimate just closer to the actual answer.
Scientists talk about "Apparent Magnitude" and "Absolute Magnitude". The first definition refers to how bright a star appears to us on Earth. The second definition is related to how luminous that star really is. Oddly enough, the brighter a star is, on either scale, the lower the number for its magnitude. The scales are a bit complicated because they are "logarithmic". However, one simple fact is that a difference on of 5 magnitudes means a difference of 100 times in brightness. Click on the link below for more details.
A vector is a quantity with both a direction and magnitude
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definition of a motor
The great size or extent of something.
Yes, that is an acceptable definition.
the magnitude or intensity of a certain sound
yes we can have. for eg electric current, pressure etc though these quantities have both magnitude and direction their directions are not necessary to define them and vectors are those quantities which has magnitude and requires direction to be defined " quantities having both magnitude and direction is a vector" is not a corrrect definition ofa vector
First magnitude stars are by definition the brightest stars.Therefore a number of bright stars are:Our SunSiriusCanopusArcturusAlpha Centauri AVegaRigelProcyonAchernarBetelgeuse
Meaning the size of something, commonly used in earth movements.