There are different units for measuring different attributes.
Base units
There are seven metric base units (m, kg, s, A, K, cd, mol). Each of these base units represents, at least in principle, different kinds of physical quantities. From these seven base units, several other units are derived. In addition to the SI units, there is also a set of non-SI units accepted for use with SI which includes some commonly used units such as the volts(that are metric but not a base unit).So volts can be also written as: m2·kg·s−3·A−1 but for easier usage V is used instead.
The usual unit is kilogram, but other commonly used units are the ton (1000 kg), the gram (1/1000 kilogram), the milligram (1/1000 gram, or 1 millionth of a kilogram), etc., just add different standard prefixes. In the Imperial system of units, the pound is often used instead.The usual unit is kilogram, but other commonly used units are the ton (1000 kg), the gram (1/1000 kilogram), the milligram (1/1000 gram, or 1 millionth of a kilogram), etc., just add different standard prefixes. In the Imperial system of units, the pound is often used instead.The usual unit is kilogram, but other commonly used units are the ton (1000 kg), the gram (1/1000 kilogram), the milligram (1/1000 gram, or 1 millionth of a kilogram), etc., just add different standard prefixes. In the Imperial system of units, the pound is often used instead.The usual unit is kilogram, but other commonly used units are the ton (1000 kg), the gram (1/1000 kilogram), the milligram (1/1000 gram, or 1 millionth of a kilogram), etc., just add different standard prefixes. In the Imperial system of units, the pound is often used instead.
Standard units are more commonly used than non standard units. Also, many of the conversion factors, such as the Universal Gravitational Constant or the Speed of Light, are in standard units and, if your measurements were not in appropriate units, you would need to convert.
Same units as are used to describe the surface gravity of the Earth, the moon, or any other body: Units of acceleration, such as meter/sec2 or feet/sec2 .
In engineering and science, a system of units called SI is used. The same units are used worldwide in most countries outside of the United States, except that in practice, some non-SI units are used as well (for example, hours and days instead seconds, and the degree Celsius instead of Kelvin).
Central unit used with a chiller system or individual units with a evaporator and condenser instead that wall units.
That's the outdated system of units used mainly in the United States, which (among other things) uses feet and miles instead of meters and kilometers; gallons instead of liters; and pounds instead of kilograms.
used instead of other elements for what?
when we do not know nothing about the other titrant.
The standard unit for heat energy is the same as for any other type of energy, namely the Joule. For historical reasons, some other units are sometimes used, e.g., calorie, or BTU. But if you want to do calculations with SI units, any energy should be measured in Joule, to be consistent.The standard unit for heat energy is the same as for any other type of energy, namely the Joule. For historical reasons, some other units are sometimes used, e.g., calorie, or BTU. But if you want to do calculations with SI units, any energy should be measured in Joule, to be consistent.The standard unit for heat energy is the same as for any other type of energy, namely the Joule. For historical reasons, some other units are sometimes used, e.g., calorie, or BTU. But if you want to do calculations with SI units, any energy should be measured in Joule, to be consistent.The standard unit for heat energy is the same as for any other type of energy, namely the Joule. For historical reasons, some other units are sometimes used, e.g., calorie, or BTU. But if you want to do calculations with SI units, any energy should be measured in Joule, to be consistent.
Base units
because solar power is natural and it is cheap.
when we do not know nothing about the other titrant.
They are used a lot in science. However, the metric units are also used in daily life, in most countries - with the notable exception of the United States.In some cases, non-metric (non-SI) units are also used; for example, it is customary to use degrees Celsius for temperature (instead of Kelvin); or to use time units other than seconds (such as minutes, days, years) for time.
instead of being that
The answer depends on the units used for 16500. It should be obvious to anybody that 16500 metres and 16500 yards will round to two different answers, as will measurements in other units.