Question

write a note of system of si units

Answer 1

Combinations of base and derived units may be used to express other derived units. For example, the SI unit of force is the newton (N), the SI unit of pressure is the pascal (Pa)—and the pascal can be defined as one newton per square metre (N/m2).

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Answer 2

basically its known as international system for representation of unit for
length........in si unit...is meter
.time..in si unit is second
...distance...in si unit is meter
......mass ......in si unit is kg
temperature...in si unit is degree or kelvin....
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