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The prefices are:

yotta 10^24

zetta 10^21

exa 10^18

peta 10^15

tera 10^12

giga 10^9

mega 10^ 6

kilo 10^3

hecto 10^ 2

deca 10^1

unit 10^0

deci 10^-1

centi 10^-2

milli 10^-3

micro 10^ -6

nano 10^-9

pico 10^-12

femto 10^-15

atto 10^-18

zepto 10^-21

yocto 10^ -24

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8y ago
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9y ago


The only SI unit that's used by everyone in the US is the unit of time ... the 'second'.

All of the other SI units are used in the US, but only by people who make things that
they want to be able to sell to other countries, and by people who want to be able to
shop in other countries and understand the products they see, and by people who
are involved in scientific or technological activities and want to be able to understand
what other scientists and engineers are doing.

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Q: What are the prefixes used in SI unit?
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No. The SI unit of length is the meter; the same unit with prefixes (such as millimeter and kilometer) is also used.


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The SI unit of mass is the kilogram. However the prefixes are based on the gram.


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The dyne is a unit of force that is smaller than the newton. 1 newton is equal to 100,000 dynes.


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milliliters, deciliters, litersAnswer:The official SI unit for volume is the cubic meter. Surprisingly, the liter is not the official SI unit of volume, although is is commonly accepted as such and used with metric prefixes.


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In the SI, force is measured in newtons. For very large or very small forces, it is of course possible to use the standard SI prefixes, but quite often, the unit used is simply the Newton, without any prefixes.


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A miligram. Grams are an SI unit, so they go with all the standard SI prefixes.


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What is the unit of a mass that is equal to one one thousandth of a gram?

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What the SI unit for temperatures?

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