有关物理杠杆的专题报告以自行车中的杠杆,中国古代的杠杆,各种不同的剪刀,或人体中的杠杆为题,要求报告中说明杠杆的作用、找出支点、阻力、动力、阻力臂、动力臂.最好有图、材料来

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/20 20:27:51
x}I#W_a"Y,R64>H7fFm-tfGs2}Jd"3$rCXrǒؒ}/*rFgɌ/o̭gL\xuq6ֽYs~f[f#;ԥǧ~O/66x)ygY`yj2&wl87=C fo{wʸU%p32dk`AS+sqs {i]_{Q ò~5ic:? g֓^~w{C~ӿ_}׿WoW/_?Wo~/^~⛯_߼z^|Ջox7/?_|͋o?fo_o_|鋯~_u͛_* 7濿xׯ_zwbߩ|3Y>>?/qsVືm)z?MߛڎNܝwy>tz ~` +6C(/11ȃy.2qǔ6JӔvcz7t2fKդS|u!:֎)S|89붏(y$9Ppe֮8A3*5瀕rՙ ӗj𝊯D죋łXW~twAb-NWzqdwd6F$bى[KfpƢatŞswm`lxfw\5">X~tQ,"^'n [JntцCh` z$JXe)HFtԥΚaפ{4g9hѭ7cB{0p ;?OMrKv謺m Yjν3mFצ?MbH;-f2bQL*yn\yGn69ҹ\s MaeOIMMǜsڜ@31]CKZ7b&pa Qi~wLz=3zoMU*Ѿ9RކCI~lqל>LD_SfCMcML9 A(`D&8vW]7FTiW$ҳyD5 Uw`x+Q SS6Vo|gP_c THL%_)tm6r#Ǐb<í^ љ'*U{;]<䵹!; ʷ3GBc^tU)Z al~4 0BO/ Sr:It QdxtGL8 2]3Vɀ#TUk{?E_ #%{LtJsa(]f'((l NqPy' 7swKX|gjCL\%5GϿlp;=[`;wm mMlox ~?ᓷa\nGQf;j|427qzN8TidTk.nmؠZLmX-H{!CPvg}u*㓽(efhȧ`ݽᝎpկvl HJ_с&vmȣW]G&MgÙz4dtr+ǔlc ;Vva[/  B-) w xMs]'Q d?pUh{\ Jz7:Ӡ4e:H1e: :ݝn,^04#[swTZ*nzOW_]~&zޝQ*ծ`BsG+"CA)Tb;.Z Kً!rgU:|w#g6^fÚ¯.Z^-g[xEs( aqhQ#R/j:lx v'fpVܳ 1]8ρ Ҷۻ7O-|ݏD璘-V lSވy$j^fj>/)]a{. H̓bkJ{I+IBn!^$x1k%#n`/tZW{^")nzLWHSIQoi [{y| + G=64ux5Ww)*FWaώe10Qp Tk(߁j ͞BDAcL&Jj ߸vH{<yo ?K@e{'ϐj 6'SH.(QF@?d(oY-ytv{~J'ѦP@H쩊2ty.ɛJ1-4ڐj~XH1>e*hK/M^%> FP5p2>:J ;`&eRL]: ?DT5ѣ.bzk8|N );2~5dn[cJ&it n|xK0͘瞮,-l4BN y [N(<$ld+pyp@F% ym= UeݓPj|7#^\ˮbna˻Yi6K㘩\w:Wo~I})̸Y]憞M]5:ДĨ ݛ[HP[]`G5$ӹbFĦ`g#dJwC}HӄVÛ98KnSJ6 ;)6#$4PpbxDhb^Z[84VJMw(Aũ7p ^.P\>(mg&*֕GuOD楤 qW. -YtbN8Q8 / L@+ly4Sy!T~6FaVtn20褢s4QJ8lf/[̍Jr@`,iE "^"0$oreqaIЫBC JiL? mM 9 a\-sR ,:ER x-`%ėz%JAjA鬬 tK&j- qv v^8\Ƥg[}\&caY^R5.6 uidǨgPbi)4CQR?â(c?_DýmMw_)mh(ay'Lalz!P] i ͤ'.Ou6K,CPΉp"JdL@%MG<9 AHuƼn 3,(L2h ŔۈVҟL挧q JA/Mz&cL̆>{ݔ]wyD T')].(jmͷXW~_"kĄfU;ޞ6>>Ǭa7D, fm߹) 8,+ fJiߌ8JPx?Kf:lҼqf=|'mH~ ۊ}""2SڹGl7J?1nM MfN`oM<3aN.kz8MwoX,|J+1h"O (u FRIڠvob M.;(􁻱>Oj5ӹN36o8qL' R%uI,|!y қ0Ⱞ_j NJT =oM)P"hK`NN\bb4|u|6%utR)==M0fpS,R־&4Vi:/h'?̽g+s<M:Vd8Focy195Anw<\t$&i+Pw }hG쇋Mr^ N57X۴W\/DsQ'^r>f(y|]͵3@㉩| FTc7ѦI M)ͺ:Ey5_&yѧ3s@ЯVe~q./|L{wQ6 UZ\h_S{%GxѬ6L $Mg.[g/$f̟T8 nYjZ$JQ3pn!5Y¼IL<&8bX*Sx&>}wi.7Dp, cjQXǕ<)'~&%yVO뻙 iJF^~tL:14:^ 2'p̀TmD'w ?fCm9ُrnA@\ 6%Vzf`ъmP,K oD`Kx/7`e `$jq✉h6V#-_,<8j¹$xb_j_?H\@ Et*j_ݍ_ y-֕cv!8X ogjz_n>U˕ANx\eןjT'<߭Ɛ0D3dy=lV52Ŕt o-ن_+DQHK8 y455SN##9!琿e.&Jw ~N-Tv⧉5I I )bV薑𴇰WWfeyd!!|ʔ7f;%M}|u/fbDc.4u8vw4-gs49h8:G1jpvg"] ,dM]lmq@e[eFCI7Mg-ҏ|_c`ŪZbcOõcPA':(8Z!I7>c~  ũ>uL*fӦMկʡ&ɉ!Rxq)Ga'.gHug"g+64xtx]uNП3nvQރ~x`*J  PvۦtJI7S0?Y3zym]ߏ?*zg#3u# 2|3>E%jMD8@q!ƹW9`ZVF t*/2 qjA{ZBI4]6 hf,7hW h`Zjk4|-IS)ꤕytƩx}őmu,poY<BfN?N +nG%i }h9CnM$I^좏#E}̐ФֽC 2a ѫ/r2oWZLeMoB?^ Yi6Ƌz46ll6$XMXI=N'қ cZPzZt,I4Vv`-`Q6nAgC삯AΧkΘH!)m)k94e;v!љ7+`nZ~vjfVۉ?1J 1{!sW4z!#E+2L3t'$)m]P^'~ O&{>͂|R>eTf-AC۸Bpn$*@*۟un-zn0Y3I2K6V][tc;b`p^mٶcTżlNB* mj_]0'qnmWūSƎ[zgZc:^Ɩ́JW윉)ߝѝO>30*3Nt*;eqeӀIBҁ 7}:Y*tgf;,c<>e5xTlP$bӭlG! c9em/Sc.o&0%t;PF:Q@vXHd6UfX84kǛL1*R 6I gڬ٧!&y}`#D_y1fZf3aהzIFwnZ693ezPZl=>i.F</fc"Dg }-#?toVLf#lI{{gn~*#8=MtP|YL7Zh6i`M؂;LiQfݵtCgYZk-L9pl\Kp?H܌{҃nDwdd$t Ν28@ӽc X09u⺶j [R{ :?$TeNc(P,&c,ڞK_ђ=r ~Ы|.ھ׮ؔrOήN.Z|v H% SYNts}H 8[8~˦ƃ~NEb(V͂ H0\1_w$Z%;=NmZU/I.U087!ej%[L8VX(B(dNPȔro֤ ^x@۾x<9y͢YH'RI(B&˩$X0N~@䍬s!*hKGa+S?0M9:G6 /m5 b/ 9_b⺘E#1ˤa-=N߸)ʔʜAJPrӤ^xt{@~{=*қ`4R`Hߢy٠V-l8T!'(513 0C_80\p䟥˺M) $pvU,L%;IɘR?Ƌ'OD譝ePv6t@QԁdE@g@4JXO 1HTyؒD ,6K,8I&ʰ;pդY`4DgJl)yK Sp8$tˇ]LE9g{7<DYTQaL 0J. ?.7_A0DB7cGk* 3OՐrD#T_qSߨh@W}'p;%t<(rWizR"Y,$<ܟMlyiQ~/y"{G.޼T^'!z/i# Ie"ɑ!$^Gu`ldfwZtֵTdws6Qoȼrmv%׼PMo0{/vkxv~@ozɼ[$G"4իb h cN-Dm Rh+=WӨӎ9W#GBcV-fkTf=Xsp^`j 3pJKg'b1 {PL&0B(Y c=Ohf]WX"}dIb4&}8@r2,2tL3d%^hqPBApN ]!_(*-tIi3dҖ lEzo\iL$a\ƛLMI1['#t{+^AT_y7 Զ&`UfO]w|QЁzc^T>>>B̔AStMeul e}'xLO+s$# ]+Ow6'=qi|ma@&v:}z C6,RL >XaoB;!KDG&rM=ưv&WnHG۸M@n`a-,rh!(e3dPlf5OOhZ| fqx_}߾ě> = tqX rsA:lOM~(\RJ(7DԔvQ@)A1qȓS&HcEfA,mp{$Rj CR~HF|IU~^x;\ O̮E]6~h@y+t=/Z1+Z^*Y{KR,8 ndRvh1-W4 0e6tqm'a#W)<#K"B ?TfErp[ʔ:6#΋6.|:ׇA5 Zڒ-#|;8_#lW4Sxf?#d+e$` <;HADy`)1j5l>e\~:=x9P13wܬMYO_#yf `jCq*ŞbiBo,Hvs(.V@:'fȸYGg(MbQzZ??)aW^qtq,G4~|qٴCcqY$7#s $B£նOehL /S3+6$64r71[⦓F~^,ryEjRBru/F N{Nca_5ۦ{N_‘ẘݻki (9`̀!+4h]8(u ,4aUf6¾v02 VyF@Tgi5^G tfWd`@y&O-T>_2ta#/j 6'Z6U:1s;YS'i x.Ѣ8+8hR"KyU힏I2]zӱ {ġjB=aQ(Ɨj%H ,AjԜBB-!@NfF$yeM.73R'^&v^ooLjkԨ \@6 36hzϰiTž04vl}jyg{͚UT4ؘڄ KJ/Lophz+}F[)ނıW^dh3 AhbT)ҳܵr6|߃f׋~O4B4g:׉WVܻC޵T^y[w;5 w%؈vp~Tf6V2Yno: : A=0y q^QtXvoQ b2ψc,fku'b<)as-^%kNWϤgxk14il*ӽV$&鵸ɯ~eܞQU D;8QuH{M.[ 9\NQȥrWlE +n}-QFuT.^<ӂkX yNQ_WK(R79 g5@t*$e4Ǣq@XA*0k%>u>ox>WzXpF;Eo}T4o|٫7W^.xGb)}\v%q"uWg_KGo_GS܇M;;Ow 6*<\FL8J0b:H$5P0\d'g Ӌ ,xj.e ثWTlѱn a'-cp5V&j^y;iW: hl~ /Gh:KMQ:M֝RLGo`w{ej@v\+EuAJt0[@}~3{T4 3To>yA#=W*璈ݕ[|5Z|a,dX ms*>/]nQ1h:Vqφ5۰kP0@<ּVZ9O)jw:.`CEX4^%`U15Yܐ=&CO:dZv+c]ځJ