For an answer to be complete, the units need to be specified. Why?
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For an answer to be complete, the units need to be spouted because the measurement of any physical quantity is made relative to a particular standard or unit.
For example a reading 18.4, just gives the value of magnitude. It can be 18.4 m,
18.4 kg etc. but if we say 18.4 m, it means that the quantity...