轉速 (rpm) = 60 x 60x2 / 4 = 1,800 rpm. 2. 60 Hz 2P 馬達 ... 轉速 (rpm) = 50 x 60x2 / 2 = 3,000 rpm ... (m/s^2)』,所以1牛頓(N)=1kg*1(m/s^2)=1kg*m/s^2
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