2022-2023学年河北省高邑县物理九年级上册期中质量跟踪监视试题含解析

《2022-2023学年河北省高邑县物理九年级上册期中质量跟踪监视试题含解析》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

2022-2023
ᱥᳮᔁ⚗1.⚪ὃᐜḄஹὃᑏ"#ᩩ%ṹ'()ᙠὃ+,ᩩ%ṹ()-஺2.⌱0⚪123ᵨ2B56789⌱0⚪123ᵨ0.5:;<⁐>?Ḅ@>6Aᑏ,>CD᦮ஹ6?"#஺3.Fᢥ᯿⚪IJᙠᔜ⚪LḄ⚪-MᑁOPQ⚪-MAᑏḄᫀSᦔ8ᙠ₝VWஹ⚪ᔁ
⚪Sᦔ஺4.Xᢝᓱ☢"\]⌕ᢚ`]⌕aẚஹac]3ᵨ7ᦋeஹfghஹiWᑐ஺kஹ⌱0⚪1.ᐵmᱥCḄᑁnoᑡqrg'ḄsA.0࠷ḄtuᨵᑁnB.⌕3ᱥCᑁnwx123ᐸᔾᦈ|}C.~ḄᱥCᑁnkᜧD.ᱥCḄᑁnwxḄ~]kᓣ2.}ஹ~ḄᵬeCᑖᵨḄᵯx|ᘤx|]|ᜫ,x|~ᓄ᝞ᡠ.ᵨ஺ஹ஻ᑖ⊤¢eCḄ£¤,ஹcᑖ⊤ᵬஹ¢eCḄ¥|¦.᪷¨©ª«Qg'Ḅᐵ¬s------------k.t/minA.Tip>TCqi>cB.>TcᵬcD.±

1B.Ûᵯᘤ]në'ḄìQᱥCᡠhᵯ₹}ḄíîC.ÒÓ᥅ÕḄÖ×ØhᵯsÍÎÖ×ØᜫïðᵯñD.ᵨòÖ×Ø☠ôõöÐᳫ½çᔾ÷òÐᳫªn]hᵯ6.oᑡøᨬnqúᔾᦈ|}ÀᱥḄ¢ûᨵᐵḄsA.CüḄýÇ~þᓣirc,ᐸᔾᦈḄ|}B.}]Ḅÿᙽ
ᓣ10࠷,ᐸᔾᦈḄC.Ḅ᯼
ᓣ10஺஺ᐸᔾᦈḄD.Ḅᙽ
ᓣirc,ᐸᔾᦈᯠ7.ᨵ⍝!
ᐵ#$⍝!%&'ᔠ$)*ᐵ.,⌕ᨵ$⍝!.ᨵᐵ#
/⁐1⁐Ḅᢣ3456ᐝ.%⍝!ᐵ#8
/45ᰐ:
,ᨵ1/456ᐝ.ᑣ᝞=>Ḅᵯ@AB⌕CḄD8.ஹFGḄ⏀I
ᑖKᵨM)GḄNᘤNPQRᜫT
NUV>W8XḄYᓄ=[᝞=ᡠ3
ᐵ&aஹbM]^Ḅ␺K`abcḄDA.aḄdeᜧ
DB.bḄdeᜧ
DC.aḄdeᜧ
D⏀ID.bḄdeᜧ
D⏀I9.hdi2:3ḄᵬஹkM]^
%lmᔾᦈḄhdi758
ᓣḄhdi65,ᑣᵬஹkḄdehdiA.74B.47C.76D.6710.᝞=ᡠ3Ḅᵯ@>
ᵯnᵯoY
'ᔠ*ᐵS௃ஹS2,ᵯo⊤3ᦪiU1sḼ,u**ᐵS2,v8ᵯo⊤3ᦪiS,yz{S|02=53,ᑣᵯ}R&Ḅ}

2hdDPTA.12B.23C.32D.5311.᝞=ᡠ3
☢GḄᙊeᘤABᑖKᨵᵬஹkM]^
M^☢
ᵬḄᜧ&kḄ.yᙠMeᘤ>ᑖKNᐭᨵ^
^☢ᢝ,ᑣv8^ᔜeᘤḄoPAஹPBoᐭஹBḄᐵDPTA.PAீPB,F\=FRB.pxFKC.PA>PB,F,\=FBD.PA>PB,FA>FB12..ᑡiḄ¡ḄDA.¢£¤¥
¦§ᑖ¨D©ªḄB.ᵯ«¬ᑮ®¯°¯
¦§ᑖ¨D±ᑖḄC.¯²o³6´µ¶ᜧYᓄ
¦§¯ᑖ¨XḄ·¸ᜧD.¹M)º»᦮Ḅ½¾oᙠ$¿5`ᔠ¿ᩭ
¦§ᑖ¨XÁᙠÂÃஹÄÅ⚪13.%ᵯÇÈḄo³ÉPᵫË*ᐵªÌᑴTÎÏÐ8
ᡭ*ÇÈ!
᯿§4Óᵯ6ᐝ஺sḼÔ4Õ
ᐵ#ÇÈ!
U$5Öo³É×تÐ஺¡v±Ùᑨu᯿§4o³ÉḄÛsÜÝD,ᳮᵫDo14.ßà#
Gám᩽ãNᔜ⚗ßåª.᝞=ᵬᡠ3
æi600NḄçèᵨ1.2sḄ8Xé$ê᪗ìḄÂᔣ#îï#ᓣ0.5m,ðÂᔣ#Ḅñ᳛iW.᝞=kᡠ3
çóbᙠéôᓷᥛ
÷ðḄïø$)ᩨᩚ
Oiû
Aiæü
ðḄæi55ON.ᙢ☢þḄûᢝḄÿm,ᜧN.

3ᵬ15.ᵯḄᵯᵫ6V10VᵯḄᵯᜧ0.1A,ᵯḄJ2.16.(1)ᵯRiᵯ&=10Q!ὶ#$ᑮ3Vᵯ&'(RḄᵯ0.1A,ᑣ᯿ḄᵯV.+,ᵯ0,ᑣ&=C.(2)᝞ᡠ3ᵯ&ᵯឤ6V,ᵯB=20Q.5ᔠ7ᐵS,ᵯ⊤A2Ḅ3ᦪ0.9A,ᑣᵯ⊤AiḄ3ᦪA,ᵯᵯḄft.'--l|—----@---=ஹ?@⚪17.(8ᑖ)Dᙠ“GHI☢ḄKLᦔ᳛OPQRᨵᐵ”ḄUVWXYZ[\]^A.I☢ḄKLᦔ᳛_`ᱥbḄcdᨵᐵeB.I☢ḄKLᦔ᳛_`I☢ḄfIghᨵᐵe@ijkḄ\]Dᵨᩈnoᡂ᝞ᡠ3ḄqrstGHuvᦪw᝞⊤^I☢zh{I☢|d?@xᦪI☢fyᱥcG/NI☢}s/mh/mF/Nজ45°10.71ঝ30°10.50.71

4ঞ30°20.51.411
ᙠ?@gW~{I☢ᔣ'ᒴ|Vᩈᙽe2
জx?@{I☢|dd3ᦪ᝞ᑣ1x?@ḄKLᦔ᳛%,ᱥbI☢Ḅ᥅dN3
?@জঝḄᦪw_Zᵨᩭ@i\],ঝঞx?@ᦪw_YḄO18.8ᑖDᙠ“GH!ὶᵯᵯḄ”?@W¡¢᝞ᵬᡠ3Ḅᵯ.ᵬ£1
¤$ᵯ¥¦§ᵯ⊤ᢣ┐᝞ᡠ3$[ᩭª⌕ᵯ⊤stḄ¬2᪷wᵬ¤$¯ᵯ5ᔠ7ᐵ#¦§ᵯ⊤3ᦪ°+±ᨵ஺ᡈZWḄ´ᜐ¦¶ᦑ¸ᑣᦑ¸_`¹ᑏY´»ᓽ_.3᣸◀ᦑ¸#¿ᡂ?@ÀÁᦪwuvᙠ[⊤W.UBCNQUAJV*"1.4^1.4^2.8P/ᑖ᪆?@ᦪwY?@^জ!ὶᵯḄᵯ_____ᔜÅᑖᵯᵯ^ঝ!ὶᵯWᔜÅᑖᵯᵯÆÇ.4?@È#DÉÆÊDᢣYঝ┯ÌḄ⌼ᡂ┯ÌḄÎQ,Ï᜜Ḅ?@ᙠ¢Ñᫀ'ÓÔᙠÏ´ÕÖᜐ.5DÓst×ᐭÊ⁚ḕᑭᵨÎᩭḄᵯᙠÜḄᵯᵯ⊤ᡠ$Ḅ3$ÝÕV±Þ7A$ÝÀÁ$ᦋ$ᑮC$Ý'Ñà¹⌱â“`”ᡈ“Õ`”YÜḄᵯᳮᵫ.

519.8ᑖäᵨåÆḄæçᑖèstKLᦔ᳛Ḅ᝞ᡠ3.ªéêṹcGஹ|dFஹêṹ'ᓣḄzhhஹdíVḄîïs,ÀðYḄᨵᵨñwᨵᵨஹòñw&KLᦔ᳛nᦪw´Àuᐭ[⊤^xGNF/Nsinqó122.10.10.10.20.2195.2%221.20.10.20.20.2483.3%320.90.10.30.20.27ਭ1
ᙠ?@¬W~õᔣ'___________|Vö÷d.⊤øWᦪwਭ=;2
ú?@1ஹ2,2xḄKLᦔ᳛úûü⌕ÎQ3
ú?@2ஹ3,ýþx?@KLᦔ᳛ÕḄü⌕QR,äᵨæçÿḄ
.4
ᨵḄ“ḕḄᦔ᳛”.Ḅ!/┯$%.5
&'()᜻+᝞-ᙠ/03123Ḅᦔ᳛4ᵨ67/89Ḽ;ṹᒴ>ᔣ@ABCDᡠ/FḄᦔ᳛GIᜧ/I&/KI%.LஹN1⚪20.8ᑖ%QRSᙠTUVWXYZ᝞@1ḄTᱥᵯ]^_`abᵯ]1.21.8ᑖ%᝞1ᡠcdᨵefgᵯhஹijᵯk⊤AimA2ஹijnᐰpḄ&qrLimestᐵஹvwxyᵨzaw{|vw%.^}8esᵯ]⌕tᐵᔠLimL2ὶijᵯk⊤Yᙠᵯ]ᵯk⊤AiḄcᦪᜧᵯk⊤A2Ḅc

6ᦪejᵯk⊤/L2Ḅᵯk.(1)^ᙠ᪾abᡠ}8Ḅᵯ]1(2)ᢥ᯿ᡠ}8Ḅᵯ]1G1ḄᐗXYᩭ(vwK⌕).ஹ8⚪22.(10ᑖ)ᵨ᝞1ᵬᡠcḄfᑭᵨA〈ᩞ¡¢£¤A〈0K¥.fḄᦔ᳛¦ᩞ§0IᓄḄ1©᝞1ªᡠcm«¬Ḅ᥅®¯¬§°ᶍK8g²10N/kg.(i)BḄ§³ᜧ?(2)xᙠIminᑁGᩞᒴ>¶·ᔣ¡9ᓣZ12m,Nᵨᙠ«¬¡Ḅ¹200N,¹Ḅº᳛»(3)¼fḄᦔ᳛80%4A〈ᩞḄ§³ᜧ½23.(12ᑖ)isᵯ¾RF20Q,RZ=40Q,RIi¿ᐕÁÂḄᨬᜧᵯÄ6V,R?ᐕÁÅÆḄᨬᜧᵯk0.2A.xGÇÈὶᩭÉÈὶᵯ]i¿ᐕÁÂḄᨬᜧᵯÄVxGÇὶᩭy]ᐕÁÅÆḄᨬᜧᵯkA.

7ÊὃÌᫀ,ஹ⌱/⚪1ஹDூ᪆௃1⚪ᑖ᪆,ᑗᱥ67ᐹᨵᑁ;<ᦑA┯?ᱥ6@AᡈCᱥ6ᔾE7FGHᱥ6ᑁ;IJ<ᦑB┯ᑁ;Kᱥ6ḄMNOPQ7ᨵᐵS

8AஹᵨÎÏÐ᥅®ÆḄÑÒÓYÔKÕᵯḄUᵯᘤ¡¿Ḅ×Øᳫ4Uᵯᘤ@¿Ḅ×ØÚÕ¡Û0ḄÜᵯpÝ᣸ßàte¥Ḅáâ»ᡠAKãᔠ⚪ä»BஹåUᵯᘤᡠÕᵯ₹0Ḅ³çèé!¥ᡠBKãᔠ⚪ä»CஹÎÏÐ᥅®ÆḄÑÒÓᙠ᥅®ḄÆêFᑮᵯᡠÕÜᵯCãᔠ⚪ä»DஹÕᵯḄᱥìíᨵᔾïð&ᱥìḄᱯᡠèé!¥òᔾïḄ&ᳫᔲÕᵯDKᔠ⚪ä஺ூö௃জÎÏÐ᥅®ÆḄÑÒÓÕÜᵯùᱥìÕᵯᨵúûüý᥅®ᵯஹYÔÕᵯmþÿᵯঝᵯ₹᣸ᵯ₹ᔾ⍝᥅Ḅᵯᵯ₹Ḅᵨ!"#$⚪Ḅᐵ'஺6ஹDூ᪆௃᪷+,-.Ḅᭆ01஺=஺3ZU45ᑖ᪆8(1)ᵨᱥ:;<=>?@Aᱥ:ᔾᦈḄ-CDᱥ:Eᨵᐵ(2)ᵫHI1᯼KḄLM>ᡠOPQḄI1᯼K:C>RSTMUᓣW10°Cᔾᦈ-C>@AXYḄ,-.>Zᯠᱥ:Eᨵᐵ\]:Cᨵᐵ(3):CQḄ>ᱥ:ᓣWTMQᔾᦈ-C>@Aᱥ:ᔾᦈḄ-CDᱥ:ḄEᨵᐵ஺ூ_"௃A.OPQḄabIᵫH!ᱥ:ᡠcd<>?@Aᱥ:ᔾᦈḄ-CDᱥ:EᨵᐵᦑA>fᔠ⚪hB.:C>QḄiᙽᵫH!ᱥ:ᡠcd<>?@Aᱥ:ᔾᦈḄ-CDᱥ:EᨵᐵᦑB>fᔠ⚪hC.ᵫHI1᯼KḄLM>ᡠOPQḄI1᯼KḄ:C]>RSTMUᓣW10°Cᔾᦈ-C>ᑣlmᑨoᔾᦈḄ-Cpqᱥ:Eᨵᐵr!:Cᨵᐵ,ᦑC>fᔠ⚪hD.:CQḄI1iᙽᓣWTMQᔾᦈ-C>tᨵᱥ:E>u@Aᱥ:ᔾᦈḄ-CDᱥ:ḄEᨵᐵᦑDfᔠ⚪h஺ᦑ⌱D஺7ஹA

9ூ᪆௃xyz⍝{ᓽz}~ᐵḄᔠ?ᢣᐝuXY!ḄᡠXY!ὶᙠḄ.ᵫ}⌱⚗utᨵA⌱⚗Ḅ}~ᐵ!ὶḄ.ᦑ⌱A.ூ௃z⍝{Hz}~ᐵz⍝{Uᐵᓽz}~ᐵUᔠ⁐ᢣLᐝᡠz}~ᐵyὶ.8ஹBூ᪆௃᝞ᡠᙠaḄTMḄᓄC,bḄTMᓄCᜧᑭᵨ-CḄ¤¥¦§Q=c3ᑖ᪆aḄ,-.¨!⏀ªbḄ,-.ᜧ!I.A.>fᔠ⚪hB.fᔠ⚪hC.>fᔠ⚪hI).>fᔠ⚪h.9ஹAூ᪆௃⍝aᱥOḄ:C«,ᓣWḄTM«,ᔾᦈḄ-C«,ᑭᵨᔾ-¦§¬ᵬ®aᱥOḄ,-.ᐵ¯஺ூ௃ᵫ⚪uaᱥOḄ:C«,°±²=2:3,ᓣWḄTM«,A³:=6:5,ᔾᦈḄ-C«,®=7:5,ᵫ¦§Q=uQ(i_஺ᵬ°qµ°_%x2x6_7QcmAtc®x3x55'"¸=:,ᦑ⌱A஺c®410ஹCூ᪆௃ᔠ~ᐵS1ஹSi,ᵯ¹yRḄºᓫᵯ¹ᵯ¼⊤¾ᵯ¿Ḅᵯ¼ᓽ஺=஺1Ḽto~~ᐵS1aᵯÁὶᵯ¼⊤¾ÂaÃḄᵯ¼

10Vὶᵯ¹Äᵯ¼QHᔜᑖᵯ¼«1aÃḄᵯ¼Ui^U-U^Ut-Ui•U1/U1,=t7i/(l/i-t7i)=3/(5-3)=3/l,•••ὶᵯ¹ᔜᜐḄᵯÇQ᪷+ÈÉÊu¸8Ri/Ri=(Ui஻)/(S7/)=Ui/Ui'=3/Lᦑ⌱C.11ஹDூ᪆௃ᵫuᵬËOḄOP¨H®ËOḄOP³ᵬḄ:CᜧH®Ḅ:CᡠuᑨoÌᵬḄLMᜧH®ḄLMᵫHÍÎᡠᜐḄÏMQᡠᵬËOÐÍÎḄ¼ÑÒᜧᦑAB┯ᵫHËOU!ᐰμᙠÕÍ☢¼×QHᔜØḄÙ×ᵫHᵬḄ:CᜧᡠÙ×ᜧÚ³u¸ÌᵬËOÐÍÎḄ¼×ÒᜧᦑC┯DÛÜÝ⌱D.12ஹAூ᪆௃ᑖ᪆8AஹᑖÞ!ᵨᾙàá>ᑮḄᡠãäåæ>?@AᑖÞ!çèḄBஹᓄéᓄuêAᑖÞuëᑖCஹ᪷+ìO.᧕î¼ïḄðxὃ⇋Dஹ᪷+ᑖÞᨵ×ὃ⇋."#8AஹᑖÞ!ᵨᾙàá>ᑮḄᡠãäåæ>?@AᑖÞ!çèḄᦑA>?yÝóôḄê+BஹᓄéᓄuêAᑖÞuëᑖᵯ"Iõᡂ÷ì1øìùHᓄéᓄᡠuêAᑖÞ!uᑖḄCஹìO.᧕î¼ïḄðx!ìOᑖÞ«Ḅ◞,ÒᜧᦑC?yÝóôḄê+;Dஹüa}ýþÿ᦮ḄᙠᔠᩭᑖᙠḄ.ᦑ⌱A.ூ#௃%&'⚪ᐵ*+,៉ᑖḄឋ/0ᱯ2ᮣ45ᵨ%78▭:⚪.;ஹ=>⚪13ஹ2ὶAB%᪆ூ᪆௃

11D>ஹD;>.EFGHᡭJKLMᐵNOKPFGᑁḄ᯿STUEFGHᐵNKLMVOKFGᑁḄ᯿SᰐX᯿S0LMYZ[\V]^_`+2ὶḄU14ஹ2501.5330ூ%᪆௃a]cdeᔣgKhḄi:W=G%=600Nx0.5m=3OOJ,i᳛W300JP=—=--------=250Wt1.2s[2]ᵫmnYo஺qᙢ☢tuḄqᢝḄw:/i=0.6m+0.9m=1.5mবᵫᩨᩚ{⊝ᩩ~FIG,ax1.5m=550Nx0.9m,F=330N.15ஹ40ூ%᪆௃ᵯḄR,ᵫ⚪:6V10V—+0.1A=RR%R=40C.16ஹ2100.310ூ%᪆௃প[1]&Ḅᵯt7=//?,=0.1AX10Q=lV2ὶᵯᵯᔜᑖᵯ0ᡠZRḄᵯUi=U-S=3V-1V=2V[2]eḄᵯeḄᩞᧇஹ☢ஹZᨵᐵeᵯ0¢£Ḅᵯ¤¥ᐵᡠZE¦ᵯ0,§!1©2=10஺(2)[3]ᵯ¤⊤AiḄnᦪ:

12d=0.3A'&20Q[4]2ὶᵯ¬ᵯ¤ᔜqᵯ¤0ᡠZ¢£ᵯ®Ḅᵯ¤:/=/.70.9A-03A=0.6A21=QḄ:4Ë0Ì,6A=10Q°ஹ8±⚪17ஹ77.8%0.2NBE²☢³´OK²☢ḄMµᦔ᳛ᱥeḄ¸¥ᐵூ᪆௃(2)[1]ᵫmo⍝º»¼Ḅᑖ+0.1N,½KḄnᦪ+0.9Nᵫ⊤¬ᦪDজ¿8±¬ÀhḄi+W=Fs=0.9Nxlm=0.9J,&ᨵᵨi+Wᨵᵨ=G/z=lNx0.7m=0.7J,ᦑ²☢ḄMµᦔ᳛+221x100%®77.8%7==%,0.9J[2]8±¬Á᜜iÃÄᱥe²☢Ḅ᥅ÆᡠhḄiᑣÃÄ᥅ÆᡠhḄi+:W”=W.6-Wᨵ=0.9J-0.7J=0.2JᵫW=Pso⍝ᱥe²☢Ḅ᥅Æ+/==—=0.2NsIm(3)[3]tÈ8±জঝḄᦪo⍝ÊᑴḄ+ᱥeḄ¸OᦋÍḄ+²☢³´YZᵨᩭ±ÎÏ+²☢ḄMµᦔ᳛Y²☢Ḅ³²Ðᨵᐵᓽ±Ḅ+ÎÏB[4]tÈঝঞ¿8±ᦪo⍝ÊᑴḄ+²☢³´OᦋÍḄ+ᱥeḄ¸ẆÔḄ+²☢ḄMµᦔ᳛ᱥe¸ḄᐵÕYÖ×ØḄÙ+E²☢³´OK²☢ḄMµᦔ᳛ᱥeḄ¸¥ᐵ஺18ஹtᵯ⊤ÚÛÜÝL?Þ(ᡈL1á)⌱ᵨOãäḄSåh8±æçØèé8±ᦪ8±¿ᦪêëØḄ8±ÙᐹᨵᏔᯠឋ0ᱏ☢ឋ^ᵯ⊤Ḅðñòóòôè

13ூ᪆௃(1)[1]õòᵯöc÷øᵯ⊤ᢣ┐᝞müᡠnᢣ┐ýᨵᢣÝþtᵯ⊤ÚÛÜÝU(2)[2]ᵫᵯmYoSåὶᵯ⊤çSåL1Ḅᵯ.NᔠJᐵ¦÷øᵯ⊤nᦪÝÿᨵL1ᡈL2ḄᜐᦑL-L?ᙳᵯᵯ⊤ᨵᦪᵯ⊤Ḅᵯ!"#ᑣ%L?L?ஹLᵯ⊤ᨵᦪᑣ'%L1((3)[3]ᵫ⊤*+ᦪ,'-UAC=UAB+UBC,ᓽ/ὶᵯḄ1ᵯ23ᔜ5ᑖᵯᵯ78.(4)[4][5]ᵫ*+ᦪ,'-ᔜ5ᑖᵯᵯ:2;<=%┯?Ḅ⌼ᡂ<=┯?ḄBC%⌱ᵨFGH:IḄJK*+ᵫ*+ᦪ,'-LMFN*+ᦪ,*+OᦪPQRMḄ*+<=ᐹᨵᏔᯠឋ8ᱏ☢ឋYRMZ[<=\ᦋ^JḄGH_`aO*+ᡈᦋ^ᵯ!ᵯ_`aO*+;(5)[6H7]YF⁚ḕefᑭᵨBᩭḄᵯiᙠLL?Ḅᵯeᵯ⊤ᡠlḄ3lmnoAlmpqlrᦋlᑮClmtu᪵KLML2ḄᵯCY᪷,ᵯiᑖ᪆'yzM{lᦋl"r|⌼ᡂᵯ⊤Ḅ}~lrlFூm௃⚪Y/ὶᵯḄᵯG*+,ὃᵯ⊤Ḅ}ᵨy/ὶᵯḄᵯᱯmὃF*+ᦪ,Ḅᜐᳮ8ᑖ᪆ஹஹ1<%⍝┯Ḅ*+⚪.19ஹᒴ74.1%nḄ᥅¡Iḕᦋ^Ḅ¢ᔣ┯?^ᜧூ᪆௃(1)*+e\¥¦{¢ᔣᒴ§n¨©Lªu᪵'y«¬ᱥ®ᜐ3¯⊝±᝱³ᑮ¯⊝Ḅ´ᵨLµ<¶·¸ᵫ⊤HḄᦪ,ª¹Rº»¼ᦔ᳛”=74.1%,(2)¿i'-À2O*+YnᙠÁW0.9Nx0.3m&ᓣᱥ®ḄIe⌕nKÄÅ᜜Äᵫ3nḄÇᙠÅ᜜ÄÈÉᡠyÀ

142O»¼ᦔ᳛ËÌḄÍ⌕BC%nḄÎ3Ð*+2ஹ3Ḅᱥ:InḄ:IÑÒᱥḄÓÔḄÕᦪIÓÔÕᦪÖa᥅¡ÖᜧᡠyuO*+»¼ᦔ᳛IḄÍ⌕C×%᥅¡IᵨNḄØm%Ù'yḕÚ'yᦋ^Ḅ¢ᔣÎ4Г»¼ÖḕÝḄ»¼ᦔ᳛ÖÞ”uàá%┯?Ḅ»¼ᦔ᳛%ᢣᨵᵨÄᓰ1ÄḄäå滼%ᔲḕèᐵ.Î4Ðᵫ3Çᙠ᥅¡ᔣêᒴëne§ìíᨵᵨÄ^Å᜜Ä^íᡠy»¼ᦔ᳛î^ᜧ.ூ᪆௃ᑖ᪆*ᱥi-⍝ᵯYpὶᵯSiñᑴ᦮ôᵯS2ñᑴL2,LiஹL3/ὶᦑ'öMᵯi.ூ௃ᵫᵯi-⍝ᵯ÷øᵯ!Ḅ}᩽÷MúSiûᑖᡂüüúýLiஹLþ3üúýL28S2,ᯠûÿᔠᑮᑮᵯḄ᩽᝞ூ௃⚪ὃḄ᪷ᱥᵯ✌ᐜ!"#ὶᵯ%&ὶᵯ'⍝ᵯ)ᔜᐗ,Ḅ-ᵨ/᪷ᱥ0ᡂᵯ.

15ூ᪆௃Li4L2&ὶ56ᵯ7⊤9ᙠᵯ);ᵯ7⊤AτḄ<ᦪᜧ?ᵯ7⊤A2Ḅ<ᦪ6ᵯ7⊤@L2Ḅᵯ7ᡠBᵯ7⊤AiᙠC)ᵯ7⊤A2ᙠDL2).EஹGH⚪22ஹ400N80W1600Nூ᪆௃(1)ᵫJ'⍝KL〈NᩞḄPQGi=400NRSTUḄVWᦔ᳛“=50%,᪷⚪Z'⍝[\NᩞPQ]Ḅ^_ᨵᵨ^[\Nᩞ4aSTbPQ]Ḅ^_b^ᡠBSTUḄVWᦔ᳛஻=ᓺᨵᵨ/gbஹ100%=6஻(G/t+Gft/i)xl()0%=G/(G+GT)xl00%=400N/400N+G»xl00%=50%,ᦑaSTḄPQGT=400N(2)ᵫᵬ'⍝"=2,ᡠBklmaḄnos="&=2xl2m=24m,pQ]Ḅ^W=Fs=200Nx24m=4800J,pQḄ^᳛W/U4800J/1min=4800J/60s=80Wq(3)KSTUḄVWᦔ᳛_80%Rᨵ஻'=Wᨵᵨ7Wb'xl00%=G%7(G'h'+Gh')xl00%=G7(G'+GQx100%=G7G'+400Nx100%=80%,ᦑL〈NᩞḄPQG=1600N⚪ὃrPQஹ^4^᳛ஹSTUḄVWᦔ᳛ḄGHᐵtVW)uᶍwG᥅yQzlPRVWᦔ᳛{|Ḅ}ᵨ஺23ஹ120.45ூ᪆௃ᐕḄᨬᜧᵯ71=ᓝ==°34,_#ὶᵯ)ᔜᜐḄᵯ7KτZUL2ᡠB56ᵯ#ὶRᵯ)Ḅᨬᜧᵯ7I=0.2A,_#ὶᵯ)bᵯ?ᔜᑖᵯ4᪷ᐕᙠᵯ5ḄᨬᜧᵯU=I(R1+R2)=0.2AX(20Q+40Q)=12V45ᐕḄᨬᜧᵯU=IR=0.2AX40Q=8V,_&ὶᵯ)ᔜD5ḄᵯᡠB22256ᵯ&ὶRᵯ5ᐕᡠḄᨬᜧᵯU'=6V,RR1DḄᵯ74=0.3A,R2DḄᵯ7I=?=M=0.15A,ᵯᵯ7ᨬᜧᨬᜧᵯ7_:R)4()121=1,+1=0.3A+0.15A=0.45A.

16ூ௃(1)'⍝R15ᐕḄᨬᜧᵯ4᪷ᐕḄᨬᜧᵯ7q#ὶᵯᜐᜐᵯ7_rwᵯ¡5ᵯᐕḄᨬᜧᵯ7⌱ᐸ)¡¤Ḅᵯ7ᯠ¦᪷#ὶᵯḄ#ὶ4ᐕᙠᵯ5Ḅᨬᜧᵯ;(2)'⍝R?ᐕḄᨬᜧᵯ74᪷5ᐕḄᨬᜧᵯq5ᵯ&ὶR5Ḅᵯ_rwᵯᵯ5ᐕḄᨬᜧᵯ_5ᵯ5ᐕᡠᨬᜧᵯ)¡¤Ḅᵯᑭᵨ5DḄᵯ7ᯠ¦᪷&ὶᵯᵯ7ᱯCªᐕḄᨬᜧᵯ7.