大学生物理竞赛试题及解答

整理文档很辛苦,赏杯茶钱您下走!

免费阅读已结束,点击下载阅读编辑剩下 ...

阅读已结束,您可以下载文档离线阅读编辑

资源描述

(1995):(120).1218.(100).(58)11(4)R,,.21(6)ABAB(AB).,,.AB,RARB,.31(4),,,.41(3)2aQ,W1;aQ,W2.W1W2W1W2(=).51(7),S1S2MN,BS1,MN.Rab,I,S2,Fmax=,Fmin=.61(4)(a)(b)(c)[],.,,,B.v0.().71(7)RL,.20,015;5020,014.,R=,L=.().81(5),(),(E).2419963(a)(b)(c).().91(5)a,.,,.I(,).101(3),11,,I10,22,,I20.12,12,I1mI2mI1mI2m(=).111(4)n=sinA+2sinA2A=6002,()=50583,nn=.121(6)SP.PSV,VP.SP,V,V.(14)131(6)PV,.141(8)xA.:x(x3419963)p(x)=1A2-x2.(48)151(14)().RmRn(011-9999919,011),R0(01001,0101),Rx(,10-3-10-2),G(),A(0-5A),R,K,E.ABCDABCDR0Rx,RfBC().(1)Rx.(2)RxRf.(3)Rx/Rx.161(10)10R,ABRAB.171(10)lmT.TT,T,Imax.Imax,T,T.181(14),,r.,.,t=0,Q0,Q(t)rj(r,t).(58)11(4)0:,V0=R,a0=0.,,an=a=2R.a=a0+a=a,,.441996321(6);(AR4A+BR4B)/(R4A+R4B):,,,,,,.,JAA+JBB=(JA+JB),J=12mR2=12(hR2)R2,.31(4);:z=2d2vn-=12d2n,d,vT,n=PkT;T,P,z,-.41(3)W1W2:We=12QU,QU,Q,U.,O.,U0=Qdq40r.,,ra,U20=Q40a;2a,ra,Q,U10U20,W1W2.51(7)2IBR;2IBRsin:,ab.dab,F=IdB.S2,dMNdMN,dB/2,,.61(4)(a):,,,.,Ei,(b),Ei,,;(c),Ei=(VB)l,EiE0,;(a),Ei,,.71(7)40;01095:,,RL.,L,R=UI=40;,Z=U0I0=50,Z2=R2+(L)2,=2f=100RL=01095H.81(5):,,,.91(5),.:,.=0,,,,.asin=,,/2,/2,,.asin=2k(k=1,2,3,),,/2,,,.,asin=(2k+1)(k=1,2,3,),,,5419963sin=/a..101(3)I1mI2m:Im,Im=ne,n.P=nh,ImPP.P,12,I1mI2m111(4)116479010007:An=116479,,n=9n9A22A+9n9221/2n=sin/22sin2A/222A+cosA+22sinA/2221/2n=010007.nn.121(6);23c:,,,.a,32a;,a,a/2,.,a2=1-v2/c232a,v=23c.(14)131(6):.C1,Q=C1dT=C1dT=0,,,U=0,W(P-V),Q=U+W,,,.141(8):xx+dxdtT,C,pdx=CdtTdt=dx|v|,p=C|v|T,x=Acos(t+),|v|=A|sin(t+)|=A2-x2,p=CTA2-x2=C2A2-x2,A-AC2A2-x2dx=1C=2,p=1A2-x2..(48)151(14):(1)KP,RmRn,G,.Rm1Rn1,,RxRf+R0=Rm1Rn1KQ,RmRn,G,Rm2Rn2,R0Rx+Rf=Rn2Rm2.(2)RxRx+Rf+R0=Rm1Rm1+Rn1,6419963R0Rx+Rf+R0=Rn2Rm2+Rn2,Rx=Rm1Rm1+Rn1Rm2+Rn2Rn2R0Rf=Rn1Rm2-Rm1Rn2Rn2(Rm1+Rn1)R0(3),,dRxRx=dRm1Rm1-dRm1+dRn1Rm1+Rn1+dRm2+dRn2Rm2+Rn2-dRn2Rn2+dR0R0,dRxRx=Rn1Rm1+Rn1dRm1Rm1-Rn1Rm1+Rn1dRn1Rn1+Rm2Rm2+Rn2dRm2Rm2-Rm2Rm2+Rn2dRn2Rn2+dR0R0,,Rm1Rm1=Rm2Rm2=Rn1Rn1=Rn2Rn2=RR,RxRxRx=2(Rn1Rm1+Rn1)2+(Rm2Rm2+Rn2)2(RR)2+(R0R0)21/2.161(10)::ACEB,AFDB.I,ACCDI1I2,.,,CDFE,I-I2=I2AC(EB),I12R=(I-I1)R+(I2-I1)RI2=I2;I1=38I.ABRAB=UABI=1II12R+I2R+(I-I1)R,I1I2,RAB=158R171(10);T,();,,,.Jm=13ml2+112ml2+ml2=1712ml2.O,COrC=34l.T,,-2mgrCsin=Jmd2dt2,sin,rCJmd2dt2=-1817gl,=1817g/l,T=2=217l18g.181(14)::,7419963,,SjdS=-dQdtj=1EE=D0r,,r,10rSDdS=-dQdt,SDdS=Q,dQQ=-10rdt,Q=Q0e-10rtjE,,j=I4r2r,I=-dQ/dt,j=140rr2Q0e-10rtr.:R,C,I=U/R,U=QCI=-dQdt,-dQdt=1RCQC=40rr2r1r2-r1r1r2.,rr+dr,R=r2r1dr4r2=4r2-r1r1r2.RC,dQQ=-10rdt,Q=Q0e-10rtj=140rr2Q0e-10rtr.(34)61121314151,,.,84075600.,,.[1]....12,510.(40),,,,.(),.,,.8419963

1 / 7
下载文档,编辑使用

©2015-2020 m.777doc.com 三七文档.

备案号:鲁ICP备2024069028号-1 客服联系 QQ:2149211541

×
保存成功