Here are some factors:kilo: 1000
mega: 1,000,000
giga: 1,000,000,000
milli: 0.001
micro: 0.000 001
nano: 0.000 000 001
For a longer list, check the Wikipedia article for "metric prefix".
International System of Units (SI)
si units are based on the metric system system international (French) international system (English)
SI is a base 10 standardized system
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"Please give your answer in SI units"
The SI prefix "deca-" represents a multiple of ten.
4 and any multiple of 4
Prefixes are useful when describing SI units because they allow for easy conversion between different units of measurement by indicating a multiple or fraction of the base unit. This helps to express quantities in a more manageable and standardized way.
The common units used for measuring mass are grams (g) and kilograms (kg). In some cases, mass can also be measured in metric tons or pounds.
The SI unit for any mass is the kilogram. However, the mass of particles such as neutrons are often expressed either in atomic mass units (amu), or in electron-volts (eV) or some multiple such as MeV - but those, of course, are not SI units.
In the International System (SI), a length or distance is measured in meters, or some multiple like km., mm., etc.
Lengths - including wavelengths - are measured in meters. Of course, multiple or sub-multiples such as kilometers, nanometers, etc. may be used in practice.
1000, or a 100.
40
90
120
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