General Physics
둘러보기로 이동
검색으로 이동
The kilogram (kg) is defined by taking the fixed numerical value of the Planck constant h to be 6.62607015 ×10−34 when expressed in the unit J s, which is equal to kg m2 s−1, where the meter and the second are defined in terms of c and ∆νCs.
[ https://physics.stackexchange.com/questions/488334/how-can-i-explain-what-a-kilogram-is-using-plancks-constant ]