How is 'Standard one kilogram defined in SI units?
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The kilogram symbol kg is the SI unit of mass. it is defined by taking the fixed numerical value of the Planck constant h to be 6.626 070 15 × 10 ki power-34 when expressed in the unit j s , which is equal to kg m ki power 2 s ki power -1 , where the meter and the second are defined in terms of c and angel vcs
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