人教版物理八年级下册知识点总结

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112N1N345,,,,,671:::,:;;:,,,;2(1)5N0.2N(2),,;(3)(4)(5),12G=mgg=9.8N/kg1kg9.8Ng=10N/kg3421AB,,,.C:2123.4512345371F=G23p=SFFNSpPa412p=ghkg/m3pPa3142(1)1m760mm(2)=(3)p0=760mmHg=76cmHg=1.01105Pa()(4)AB10.3mCD76cm1=760mmHg=76cmHg=1.01105Pa34561:1:12GFF=GF()3.F=G=gVF=GFGFGF=GFG=215(1)(2)(3)12W=FS3J1J=1Nm123P=tWWJtsPW4WkW1kW=103W5P=FPFFPWFN/m/s12341=+J2612OF1F2L1L23F1L1=F2L2F1/F2=L2/L14L1L2F1F2L1L2F1F2L1L2F1F21(1F=G2S=h21F=21G2S=2hF=21G+G3,F2OF1L1L27,1F=n1G2S=nhn23W=WW4=WW1

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