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정의
SI 기본량(길이, 질량, 시간, 전류, 열역학적 온도, 물질량, 광도)의 수학적 조합으로 정의되는 물리량.
설명
Speed is a derived quantity: distance ÷ time = m/s. Force is mass × acceleration = kg·m/s², given the special name newton. Pressure = force ÷ area = kg/(m·s²), given the special name pascal. The SI system currently recognizes 22 derived units with special names, all traceable to the 7 base units through exact mathematical definitions.
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