10(40)A 50HZ 220V 360r kwh是多少千瓦的电表?
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最后是硫酸钾和偏铝酸钾的混合液.0.20mol/L的KOH生成0.05mol/L的KAlO2,硫酸钾浓度是0.2mol/L,所以最后钾离子浓度是0.05+0.282=0.45(mol/L).选D.
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Tenforty
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5X+10(40-X)=3605X+400-10X=360400-5X=3605X=40X=8
SF是机油的规格.根据美国石油协会标准制定的润滑油级别10w-40代表黏度和使用范围10w表示黏度,也代表低温启动的系数.大概在零下10度以内可以保证40代表流动性,当然你说黏度的一部分也行代表高温抗
162564
答案是4分之1
twentytoeleven
5.5应该是屈光度补偿,你可以旋转配合自己的视力,96m/1000m,也就是说一千米外的景物可以被拉近到96米.
(√40×√10)/√8=(8√5×√10)/8=√50=5√2再问:√8分之(√40+√10)这是正确的题目再答:(√40+√10)/√8=(8√5+√80)/8=√5+(4√5)/8=√5+(√5
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原式=√(40*10)=√(400)=20
10/40+(1/40+1/80)(x-10)=11/4+3/8(x-10)=13/8(x-10)=3/4x-10=2x=12
额定电流10A,峰值电流40A.