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    1. •Įa(chn)c̰

      rg2023-03-07 18:22:56 ̰ ҪͶ

      •Įa(chn)c̰

      •Įa(chn)͂ͨ^̽w̽^̺ͷl(f)ڽ̎(do)ʹWͨ^HԄ֌͌F(xin)ռϢMЌȷóY(ji)Փ

      •Įa(chn)c̰

      •Įa(chn)c̰1

      n}•İl(f)c

      nr1nr

      ̌WĿģ1.֪•wӰl(f)•İl(f)c

      2.֪•Ҫ|(zh)•ڲͬ|(zh)ЂٶȲͬӛ•ڿ՚еĂٶ

      3.֪•F(xin)ͻ•yxԭ

      ̌Wyc•yxӋ

      ̌Wc•İl(f)͂^•

      ̌Wʾ(do)W̽

      ̌WþߣһƹF_͸ϱ

      ̌W^̣

      һ

      ՈһλWxnp31?֣ᆖͬWTDzǶ Ҋ?x•ôl(f)?•@Mÿ˵Ķ?

      ҂һо•İl(f)͂^W•F(xin)Ļ֪R

      •'l(f)

      ҂ÿˏij Nӵ•@Щǧǧff•Ӱl(f)?

      ͨ^о҂l(f)F(xin)һаl(f)w(ጺΞ)

      evԒl(f)••ӡǿ՚ĕrƤӡ

      ʾCl(f)•_ƹ

      l(f)•Rˮ

      õY(ji)Փһаl(f)•w

      ᆖ^Dzһӵwڰl(f)•?

      WӑՓώw{Y(ji)һӵwl(f)•ֻ^ЩӰl(f)•҂?ni)˶ ? IJһDzڵ)

      ᆖӾ͕l(f)•l(f)•һӣֹͣ•?

      ʾfֹͣl(f)Ҳֹͣ

      •Ă

      eώvnÿͬW Ҋ•ӂゃĶ?

      •ͨ^՚̰•İl(f)c

      ʾC湲Qһ揗ƹ

      ᆖ˿՚Ԃ•⣬߀Щ|(zh)Ԃ•?

      WӑՓeώw{wҺw߀йwԂ•

      ef~ˮTԒFΓ ܉ȵ

      W򞣺N Nӵ•

      ҂пԂ•|(zh)(ý)н|(zh)

      wҺwwǽ|(zh)

      ᆖ]КwҲ]Һw͹w]н|(zh)߀ܲ܂•?

      ]н|(zh)܂•ղ܂•

      ՈW鿴nP33•ٱ

      óY(ji)Փһ•ڹwбҺwЂ죬ҺwбښwЂ

      (ɷ̶ܼțQ)

      ҳ15Cr՚•ٞ飺340m/sҪWRӛ

      һ՚ofJ•340m/s

      }FΓ꠆TP܉ ܇x܇xs ׂ••

      ֮ggǶ?

      ġ•

      ••ڂϵKﷴ؁ĬF(xin)

      ώvnʲô] •?

      •ڲ ֻ˶܅^(q)---ԭ•rgg̫

      ˶^(q)ԭ•ͻ•Сrgg飺0.1

      MWӋ •̾x

      s=vt=340mL=s/2=17m

      塢•

      1yxL=vt/22yȣh=vt/2

      ˼}:һС܇40m/sٶɽ_񂣬ijذ1s •С܇ȕrxɽ_h?

      ߡСY(ji):I(y)P433}4}.

      O(sh)Ӌ

      •F(xin)һ(ji)•İl(f)͂

      һ.İl(f)

      1.һаl(f)•wӡ

      2.ֹͣl(f)•Ҳֹͣ

      1.•|(zh)(κΚwҺw͹w)

      2.•(15)340m/s

      3.•ɴСУwҺww

      1.••ڂϵKﷴ؁ĬF(xin)( •l0.1s17)

      2.û•yxs=1/2s=1/2vt

      •Įa(chn)c̰2

      ̌WĿ

      һ֪RĿ

      1.ͨ^^͌JR•a(chn)͂ėl

      2.֪•wӮa(chn)

      3.֪•Ҫ|(zh)•ڲͬ|(zh)ЂٶȲͬ

      Ŀ

      1.ͨ^^͌̽•ήa(chn)?•΂?ĶB(yng)Wо}ķ

      2.ͨ^W呟W^

      Ŀ

      1.ͨ^̎Wp߅̌Wl(f)WČWdȤB(yng)WƌWğʹW̽ȻF(xin)ճеW

      2.עڻB(yng)WcͬWR

      ̌Wc

      ͨ^^͌̽•Įa(chn)͂

      ̌Wyc

      Mָ(do)W̽^Ум^Jܵó_Y(ji)Փ

      ̌W

      ̽ӑՓ򞷨^취

      ̌W^

      һ(do)n

      ώϹ(ji)n҂εĽBһҪWĎ׷֪Rl߀ӛĎ׷֪R?

      ώ҂͌W@ƺSWص•F(xin)

      ňW

      ώċ냺ɉصһ͟oro̲c•򽻵纣˵•(yu)•܇•ώvn•ȵl߀eһЩ•?

      WСB'•ҕC•

      ώ@ôN•ôa(chn)??gu)ゃ@ЩĴƌWһ̽һ°!

      ҂ȏ߅•F(xin)_ʼо

      (һ)•Įa(chn)

      ώо֮ǰ҂Ҫ˽һ¿ƌW̽ĎׂE}--cO(sh)--O(sh)ӋMЌ--ռ(sh)(j)ՓC--óY(ji)Փ--c--u

      []

      ֱ߰l(f)•Č;

      ώڰl(f)•ͬrʲôF(xin)?

      W^쿂Y(ji)()

      vԒ(İ!)ͬr퇵̎;

      ώvԒͬrʲôX?

      Ww򞡣

      ώǰɂ•a(chn)ͬrl(f)•w҂}•ôa(chn)?һwl(f)•wô҂͑(yng)ԓO(sh)ӋC

      (3)ƤƤӵͬr •ˌC҂IJ

      ώ@Щ•a(chn)ĕr҂ܺ@ؿЛ]пҊӵ•?҂ԓôӁCԼIJ?

      (4)ȡһģһ

      ώİl(f)•DžsҊDz҂IJe?ゃԼôk?

      Wĵ̫΢С҂Ҋԑ(yng)ԓÖ|Ŵ@N(ڹϷϷ۹P^ٴÓ۹P^)۹P^fİl(f)•ҲӮa(chn)

      ώܺã҂ׂC҂IJ

      (5)Ó

      ώ@ҲҊӣλͬWԇԇ@ҲӮa(chn)•?Ŀx

      WףÓ֮󿿽ԭӵđҒƹl(f)F(xin)С򱻏

      WңÓ֮ʢˮIJУl(f)F(xin)ˮĞR

      ώՈտƌW̽IJEόMзՓCゃõʲôY(ji)Փ?

      W҂l(f)F(xin)ÿήa(chn)•r˽Y(ji)Փǣ•wӮa(chn)ġ

      [ʾ]Óһ֮a(chn)סʹֹͣl(f)F(xin)•Ҳʧ

      ώ@F(xin)ܵõʲôY(ji)Փ?

      Wֹͣ•ʧ

      ώͬ•ӵIJλͬvԒ•ӣǵӃ(ni)՚ùǹӵ҂؄e˼Ȼ֪•wӮa(chn)ôӲ؏(f)l(f)?㣬ʲô؏(f)l(f)•?

      [W]

      ώ҂l(f)•wҎ(gu)ӛȻٰӛµҎ(gu)ȥ͕a(chn)cԭһӵ•ڵijƬC@Nԭɵġ

      ()•Ă

      1.w•

      ώЛ] vԒ•?

      W]

      ώNゃĶvĆ?xゃһľxʲôゃ ҵ•?fˮȰˮñӰˮ͵߅ܺȵˮӾҺˮý҂֮gʲô•?ゃܲܲһ?

      W҂ώ֮gֻп՚@N|(zh)Ҳ둪(yng)ԓǿ՚•fý

      ώ벻ھŒ҂Cһ]п՚(ՠB(ti))҂߀ܲ •?

      [ʾ]•ʾ

      (1)п՚rͨԴ •

      (2)óCѿ՚ȥ֮•׃С

      (3)Ś⣬l(f)F(xin)•ԽԽ

      Y(ji)w܂•ղ܂•

      ώWатҪ|(zh)н|(zh)ʚw•Ľ|(zh)

      ώȻг˚w߀йwҺwôwҺwҲ܂•?ʲô?Ոef

      2.w•

      Wжf•܉^w׌ ԹwҲ•Ľ|(zh)

      []ѶNϣppĄ܏ľ^•

      Y(ji)ՓwҲԂ•fwҲ•Ľ|(zh)

      3.Һw•

      ώ҂ںuL~һİl֪~ĕr(yng)ԓעʲô?

      Wڰϴ•vԒ

      ώʲô?

      Wǘӕ~

      ώ~ҺwҲ •fʲô?

      WҺwҲ܂•ҺwҲ•Ľ|(zh)

      Y(ji)•Ҫ|(zh)|(zh)wҺwwղ܂•

      4.•

      ώͨ^̽ӡʾhh҂ѽ(jng)֪ˣwҺw͹wý錢•ȥô•ڲͬ|(zh)ЂĿһӆ?ՈͬWxn15퓈D׷N|(zh)е•شІ}

      [ͶӰ]

      }1•15 25 Ŀ՚ЂٶȷքeǶ?@f•ٸʲôP(gun)?

      }2•25 Ŀ՚sˮЂٶȷքeǶ?@f•ٸʲôP(gun)?

      }3ȱеĔ(sh)(j)԰l(f)F(xin)ʲô?

      Y(ji)(1)һr£•ڹwڂٶȴҺwڂٶȴښwڂٶ

      (2)•ٴСc|(zh)NضP(gun)

      5.• •ڽ|(zh)•ʽ

      6.•

      ɽ ••ô?

      ώͬ•ڽوvԒ ʲôһ?

      •cԭ•֮gڕrggС0.1Sr˶ •˕r

      •ԭ•𵽼ӏá

      

      1.̫ܲM?ʲô?

      2.ڰvԒˮ~ͨ^Щ|(zh) •?

      •Įa(chn)c̰3

      ̌WĿ

      •Įa(chn)čWO(sh)Ӌ

      1֪•Ӯa(chn)

      2֪•ĂҪ|(zh)֪•ڲͬ|(zh)ĂٶȲͬ

      3ܷһЩҊ•F(xin)

      yc

      أ1W•Įa(chn)c^̵̽

      y2O(sh)Ӌ̽Č

      3•F(xin)ķ

      ̌W^

      ̌W(ni)

      ̎

      W

      ע

      (chung)O(sh)龳(do)n}

      ֪Ra

      һ(do)n

      ׌W^n12퓈DƬ׌ͬWffʲôF(xin)ʲôͬ

      Mn

      1.•Įa(chn)

      1̲oķDIJͬķo•a(chn)r׌Wl(f)F(xin)wl(f)•rĹͬ

      2̽Y(ji)l(f)•wĹͬ

      һ׌WƤһMһˌƤLһ֓܄Ƥ^Ƥ

       ʲôͬrע^˕rƤ̎ʲôB(ti)

      ڮֹͣĕr߀ •

      ׌Wÿ̶ȳ򞡣ʹ̶ȳ֮һ֌֮һo߅һ֓܄׌W^r

       ʲô˕rij̎ʲôB(ti)

      ڮֹͣĕr߀ •

      ӑՓxnP13hh̎ጣ

      sİl(f)•ڸ,ӹĤķʽl(f)•,ٽ(jng)^λĹQ,܌•hsİl(f)ȲdzӰl(f)•ҲǸĦl(f)•

      wӰl(f)•ĬF(xin)̫ͬWeȻһЩİl(f)•F(xin)

      Aٵ•ښě_ك(ni)ďƬl(f)Ӱl(f).

      BƓP_˹•ښͨ^ܕrʹ܃(ni)՚Ӷl(f).

      C•ǿǻ(ni)՚Ӯa(chn).

      Dן'sQsİl(f)տsrl(f)ĤӶa(chn).

      Eը•ǚĤ܇՚Ӷa(chn).

      F•ݺƴٲ•ˮײʯ^՚Ӱl(f)•.

      3֪RС

      fԒrַں퇵Ըе퇵ĕrp|ҲԸXְס棬ʹֹͣl(f)Ҳ@ЩŒC•ʹwĶa(chn)ģֹͣl(f)•

      2.•Ă

      1龰O(sh)ã^̲ĈD1.1-5T̫ßo늲Մ̎}֪T֮gͨ^ʲôMнՄģ?yu)ʲôֱMнՄ•Ăʲôl᣿

      2̽ӣ

      ٣w•򞣩nһֻNһֻϡһͬWӵһô

      ͬWxp15hhxش

      3•

      Ȼ•ڹwҺwwЂôͬW֪•@Щ|(zh)ôĆxP15(ni)

      4֪RС

      fe`ǣ

      A•ڿ՚Ђ

      B•܉Ђ

      C•ںˮЂ

      D•Ђ

      1龰O(sh)î挦ϵKһ•^һ܉ •֪@ʲôԭ᣿

      䌍•ĂҪrgģҰ•ÿ(ni)ľx•٣••􂃂Ŀ

      xnp15СYϡ^•ڹwҺw͚wеĂٶ

      2•ٹʽv=s/tvʾ•نλ/sxÿ룩sʾxλǣףtʾrgλs룩

      p16

      3֪RС

      һLLF ״•քeǏģ

      Сɽһ•(jng)^3 ԼĻ•tСxɽľxsǶ٣v=340/s

      4(ji)֪RСa

      ••ڂ^ϵKl(f)γɵ˶܅^(q)ֻ•ԭ•ĕrgg0.1

      Ӌ㣺 •̾xǶ

      ֪v = 340 / s, t = 0.1 s

      s

      ⣺sv t / 2 = 340 / s 0.1 s / 2 s = 17

       •̾x17 

      2

      ׺Wͬrl(f)҂ȿҊW •ʲôٱ•ٿ

      WӽY(ji)Mcu

      O(sh)Ӌ

      һ•F(xin)

      һ(ji)•Įa(chn)c

      һ•Įa(chn)

      •wӮa(chn)

      •Ă

      1.•|(zh)ղ܂•

      |(zh)܉•|(zh)

      2.•н|(zh)ж•ʽ

      3.•

      1•ÿ(ni)ľx•

      2•ٹʽv=s/tvʾ•نλ/sxÿ룩sʾxλǣףtʾrgλs룩

      3•ڹwҺwбښwЂÿ

      415r՚е•ٞ340/s

      4.•˶܅^(q)ֻ•ԭ•ĕrgg0.1 •̾x17 

      ̌WСY(ji)

      СY(ji)(ji)(ni)ݣ_Ŀ{(dio)ءyc

      I(y)O(sh)Ӌ

      1.քXWе1345.

      2.׾(yng)ă(ni)

      •Įa(chn)c̰4

      (ji)njW|ĵһ(ji)ڽ̲ԼԺ̌Wжepصĵλˣܷͨ^@(ji)nČW׌Ww֪R҂߅Wl(f)WW

      dȤ͏ҵ֪B(yng)W֌^^w{Y(ji)̽R(chung)Rͳɞ@(ji)nҪQĆ}˸õͻyc䌍n˵ľڽ̌Wϰl(f)D(zhun)׃

      1)֪R،Wl(f)չD(zhun)׃;

      2)ؽ̡̎،WWD(zhun)׃;

      3)ؽY(ji)^D(zhun)׃

      wwF(xin)Žׂ棺

      һ (chung)O(sh)SĽ̌W龰

      dȤõώֻгֆWČWǻۻӵķeOʹWWɞW׌nóMͳɞO(sh)Ӌcڽ̌W^Є(chung)O(sh)̌W龰һͨ^ؐҵĵ彻\ͬrչʾc֮һµ•DΣBؐҵƽ׌W•l(f)WWdȤ;ͨ^һЩȤİl(f)•F(xin)󡢽BĻԭ֪R׌WMһӰl(f)•cl(f)ȻF(xin)ČWоdȤ;ͨ^}롪ýY(ji)Փᆖٲ롪ٌĽ̌W^(do)WУĶǶMмоwƌW̽һЩ

       ע،WHw

      WnjWwÿWֻͨ^Լ(ֵ)ȥԼxԼԼ^˼֪R@DŽe˲ܴ棬ҲDzܸ׃˽Y(ji)WƵc^͌O(sh)Ӌһ̎ʾ򞡢WһԌWh(hun)(ji)һͨ^Wl(f)l(f)•ȥĦ^ól(f)•w@һY(ji)Փ;ʾ⏵Č򞣬׌Wͨ^^ͱ^ó•ĂҪ|(zh);njW(j)}O(sh)Ӌ򞲢Lԇw{ýY(ji)Փ;׌WԌW•@һ֪R໥ϵwW؞ڽ̌WʼKDʹWԼ'ݔɞҪĽ̌W(ni)YԴɞ̌Wӵͬrͨ^ϵwW׌Wܵl(f)F(xin)}Q}ϲw򞵽WĘȤB(yng)WČ?zi)̈́?chung)R

       {(dio)WĺW

      һλƌW10rgM{(dio)֪Wķ֪Rh̭?{(dio)Y(ji)c̎˽̌W^̲HHһJ֪^ҲһWWͺ^̡ڃɂW򞼰_չʾͨ^ͬWСMgĶγȫ๲ͬWĄӑB(ti)MwW(wng)j(lu)Y(ji)(gu)Mˎ֮gW֮gWСM֮g(f)ġͨӴεϢ@Nȫλ໥໥WWHW֪RͷҌW˱˴gąf(xi)ͬrҲB(yng)ͬWg໥ͬ̽ĈF꠾

      ֮ͨ^(ji)nŬ׌WwЌWڻЌWѬЌWʹɞWnõ

      [̌WĿ]

      1֪Rc

      1)֪•wӰl(f);

      2)֪•Ҫ|(zh)•ڲͬ|(zh)ЂٶȲ֪ͬ•ڿ՚еĂٶ;

      2^c

      1)B(yng)W^򞡢˼S;B(yng)WՓ“(lin)ϵH;

      2)B(yng)WԌWZԱ_֪R;

      3БB(ti)crֵ^

      1)Mgлӣ_ͬӑՓͬcͬLԇǢĽ̌WՇ;ͨ^W̽B(yng)ͬWg໥ͬ̽ĈF꠾;

      2)ͨ^ĄWđLԇͬČ򞷽ͽQ};B(yng)WĄ(chung)R;

      3)ͨ^eȻаl(f)•׌Ww֪R҂߅l(f)WWdȤ;

      [̌Wc]

      WƌW̽^̵w򞣬wКw{Y(ji)Y(ji)Փ

      [̌Wyc]

      ͨ^WO(sh)Ӌ򞡢đLԇB(yng)W̽R̈́(chung)R

      [̌WY(ji)(gu)]

      (chung)O(sh)龰(do)Ŀˡ̽`w򞡪_Y(ji)w{

      [̌Wģʽ]

      ӡ򞡱̽ģʽ

      [̌Wx]

      1)̎ʾȫ

      2)W

      3)ýwDƬģ

      •Įa(chn)c̰5

      ̌WĿˡ

      ֪Rc

      1.֪•wӮa(chn);

      2.֪•Ҫ|(zh)ԼwҺww܉•Ľ|(zh);

      3.֪•ٸ|(zh)ķNͽ|(zh)ĜضP(gun)

      ^c

      1.\^͌̽•a(chn)Č|(zh)Լ̽•ӂ

      2.ͨ^WӣB(yng)W^?zi)ͿƌWʹWճо}ķ

      БB(ti)crֵ^

      1.ͨ^̌WЎl(f)WČWdȤ͌ƌW֪B(yng)X̽ȻF(xin)ճеԭĿƌWB(ti)ȡ

      2.ͨ^ͽB(yng)WӅcc˺ľ

      cyc

      c:

      1.•wӮa(chn)ġ

      2.•ĂҪ|(zh)Լ•Բʽ

      3.•c|(zh)NԼ|(zh)ضP(gun)

      yc:•ڽ|(zh)•ʽ

      ̌Wʂ䡿

      ̎ʂ:ýwnģмʢˮğC[

      Wʂ:ƬƹˮСKVƿ•оƬ

      ̌WO(sh)Ӌ

      (chung)O(sh)龰}

      (1)̎ȻԼгҊijЩ•

      :•ƬS늺•еBZյs•ٲ•

      ̎ᆖ:ͬWゃ Ŷʲô•?Щwڰl(f)•?

      ̎:ı(ji)n_ʼ҂оȻ•P(gun)֪RͬWԼ֪P(gun)•Щ֪R?

      ̎ٝp϶ͬrxժ䛌WĆ}_(ji)nо}njWĆ}еijׂfĆ}ԺČWu̽ҲnȥYԼо

      ̎_̌WоĿ:

      (1)•Ӯa(chn)?

      (2)҂?ni)˶ •?

      (3)•ӂ҂?

      (4)•Ŀ

      ̽Իһ

      @^̷֞EM:̽ԻӡСY(ji)

      1.̽Ի

      MW:ϵ׌l(f)•ȱȿlķlİl(f)•Є(chung)Bϵ؄e

      ^ҪW:

      w:׌wl(f)•ģ|l(f)•wrՈwX

      ˼:

      wl(f)•rcl(f)•rʲôͬ?

      wl(f)•rʲôͬ?

      :ϵоΰl(f)•̎cӑՓȻ̎ՈW_оY(ji)صİl(f)•ٝp͹Ą}ԼҊ

      ͬw:Լ•fһԒwϵĸXfX

      WóY(ji)Փ:ӵwܰl(f)•

      }:Dzwl(f)•һ?

      ˼: •sҊӵӣʲôkCӵ?

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      ^ҕlYϣĬF(xin)

      СY(ji)ϸJRĻA(ch)ϿY(ji)wl(f)•ԭwl(f)•w

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      3wDzҲ܂•أ

      򞣺һ׃(ni)ʢˮÃɉKʯ^ˮײҲ ײ•һڏVCϴbüˮˮ՘Ҳ C•

      Y(ji)ՓwҺww܂•܉•Ľ|(zh)

      4(do)WЩС

      ӵÕ򞣺oNһͬWӵһÓĦ •

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      ҳÕ|(zh)Y(ji)һض£w•СҺw•٣Һw•Сڹw•

      4ӛס15r՚е•340m/s

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      3•ӂ҂?ni)˶ģ?/p>

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      ׌WeһЩwҺw܂•

      •Įa(chn)c̰10

      ̌WĿ

      һ֪RĿ

      1ͨ^^͌JR•a(chn)͂ėl

      2֪•wӮa(chn)ġ

      3֪•Ҫ|(zh)•ڲͬ|(zh)ЂٶȲͬ

      Ŀ

      1ͨ^^͌̽•ήa(chn)ģ•΂ĶB(yng)Wо}ķ

      2ͨ^W呟W^

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      2עڻB(yng)WcͬWR

      ̌Wc

      ͨ^^͌򞣬̽•Įa(chn)͂

      ̌Wyc

      Mָ(do)W̽^Ум^Jܵó_Y(ji)Փ

      ̌W

      ̽ӑՓ򞷨^취

      ̌Wþ

      Ƥϳ܊ġС[гCIJͶӰxҕCC

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      ݴ•ǿǻ(ni)՚Ӯa(chn)

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      Цܰl(f)Ц•ǹ⚤SСף(jng)Lһײڰl(f)•

      ێͬWecȻSʵ•ܰW֪R(yng)õ`ȥ@ܺáP(gun)•İl(f)ͬW߀ʲôɆ

      ҂ƽ Ƭô

      ێͬW@}úܺӿ԰l(f)•l(f)•wӛҪr׌wӛҎ(gu)ȥ͕a(chn)cԭһӵ•@ӾͿԌ•ƬһȦȦҎ(gu)tĜϲƬD(zhun)ӕrS^Ĝϲ@ӾͰӛ䛵•جF(xin)SƌWg(sh)M˂߀l(f)ôŎͼ⳪Ƭӛ•ķ

      ̽•ӏİl(f)•wh̎

      ێՈͬWđһ£•ӏİl(f)•wh̎

      ף•ɰl(f)•wȥֱ

      ң•ȥҪʲô|ý顣

      ێՈͬWO(sh)ӋһCIJ

      ݰуɏnooذһһͬWpһһһͬWѶNһһ ӵ•

      ێ݄ͬWO(sh)Ӌ'@򞺆f•ĂҪ|(zh)Wа@ӵ|(zh)|(zh)medium

      Еr]н|(zh)Ҳ ••ƺ]ʲô|fѽێ•ĂҪ|(zh)

      ҊзеJ鲻Ҫ|(zh)еJҪ|(zh)

      ێ݌`ǙzΩһ˜׌҂ͨ^Cҵ뷨

      ʾ

      һֻ⏵[犷ڽгCIJփ(ni)óCuеĿ՚Sփ(ni)՚ijՈͬWע•ʲô׃

      Sփ(ni)՚ij•u׃Сֱ •

      ێՈͬWע^죺׌՚uM벣փ(ni)•ʲô׃

      S՚uM•uӏ

      ێ݆l(f)W˼ČͬWԵóʲôY(ji)Փ

      ղ܂•

      ێݽ(jng)^ͬWм^JͬWóղ܂•_Y(ji)ՓH҂ƽ ˴vԒ•˿՚@N|(zh)ƌӺ҂֮gҾ •ˡ҂܇M˿՚՚f•Ϣṩ˱l

      ϛ]п՚TôՄ

      ێϛ]п՚TʹҲֻͨ^o늽Մo늲Ҳ܂

      ۿ•ڿ՚еĂ

      •ڿ՚ӂԓĞӕrs(c)Ŀ՚⣬ʹ@ֿ՚׃ӕr֕ʹ(c)Ŀ՚׃ϡ治՚оγgIJh̎@^̺ˮĂһ֧UPpcˮˮ͕γһȦһȦˮh̎•ҲһN҂•sound wave

      hh

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      ףӾӾˣˮוr ߅˵ՄԒ•

      ң~rҪ߅h(hun)İo

      ݝO񂃳Ӱl(f)•l(f)~ϲg•~T~W(wng)

      ݰ⏵[ϴˮ •

      ێͨ^̽ʾhh҂ѽ(jng)֪ˣwҺw͹wý錢•ȥô•ڲͬ|(zh)ЂĿһӆՈͬWxn15퓈D׷N|(zh)е•شІ}

      ͶӰ

      }1•15 25 Ŀ՚ЂٶȷքeǶ@f•ٸʲôP(gun)

      }2•25 Ŀ՚sˮЂٶȷքeǶ@f•ٸʲôP(gun)

      }3ȱеĔ(sh)(j)԰l(f)F(xin)ʲô

      ף15 r՚е•ٞ340 m/s25 r՚е•ٞ346 m/sf•ٸ|(zh)ĜضP(gun)

      ң25 r՚е•ٞ346 m/s25 rsˮе•ٞ1497 m/sf•ٸ|(zh)ķNP(gun)

      •ڹwҺwбڿ՚Ђÿ졣

      

      ێՈͬWֽMӑՓÿMһy•ٵķMܵԒMЌHyĂMķmyõ•ٸӽr挍ֵ

      ێͬWO(sh)ӋķһĿƌWףRͬWɹO(sh)nͬWͨ^y•͸

      ۄքXW

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      3 ɴô•һ•Fڶ •FеĿ՚

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      3•ڲͬ|(zh)е•ٲͬ

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      •Įa(chn)c̰11

      ̌WĿˡ

      1ͨ^S••ԂfϢ

      2ͨ^^֪•wӮa(chn)ģֹͣ•ʧ

      3 ͬİl(f)•JRﲻͬİl(f)ʽ

      ̌Wc

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      ̌Wrg

      һnr

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      һȤ(do)֪•ԂfϢ

      1.ՄԒͬW҂܇ÿиNӵ•S҂⏵•V҂nе̎•׌҂һ һ @Щʲô•fʲôϢ

      2.l[•܇•••

      3ᆖ@ʲô•@•_ʲô˼

      4WR •Լ@•_˼[•-𴲕rg܇•-܇עⰲȫ•-İˁ

      5СY(ji)•҂fϢͣ•fͬϢ҂һM•҂x_•@(ji)n׌҂һM•ȥ̽P(gun)•a(chn)ĊWء

      6n}•Įa(chn)

      ̽•ήa(chn)

      һͨ^׌ϴl(f)•JR•Įa(chn)cw\P(gun)

      1.ᆖʾrͬW ô•F(xin)ñrһ•

      2.ᆖʲôk

      3ʾWfһfʂʲô׌ϴl(f)•

      4.ȫӣҪ󣺿lİl(f)F(xin)•rע•ĴС

      5̎ƣ_ʼͣ

      6ᆖlܰʹõķչʾoҿһ~ʹϴl(f)•Ąʽʲô

      7WR󣬽̎~

      8ͨ^áġĦȄʽʹϴl(f)•ͬķʽʹw\Ӯa(chn)•ô•ôa(chn)

      ͨ^̽ͬwl(f)•\w{•wӮa(chn)

      1׷F(xin)JwӲܰl(f)•

      2WӑՓ

      3ՄԒʾģо@}ώoҜʂˎטӌмЩʲô@Щwӕrl(f)•ʲôkքe׌l(f)•أ

      4W^쌍IJ˼ɌWBʾ׌l(f)•ķv⌍򞷽ʾӛ䛱

      5̎SCָ(do)Ʋv_Č

      6.ᆖҪ֪@ЩƷʲô԰l(f)•҂Ҫ^о@ЩƷl(f)•rĹͬcˣҪעڌ^^ͿY(ji)һwl(f)•r\܉Eʲô׃

      7v⌍ӛ䛆βeʾe퇵l(f)•ָ҂úPʽ퇵ڰl(f)•r\܉E

      Ӷͨ^̽ͬwl(f)•\w{•a(chn)ԭҵC^

      8.pptʾҪ󣺿l(f)•wʲôF(xin)a(chn)ڬF(xin)@İl(f)•wһһ\l(f)•wl(f)•r\܉Efl(f)•rĠB(ti)Ͱl(f)•rĠB(ti)

      9.򞣺ҪM5l(f)•򞣬^wl(f)•rĬF(xin)l(f)•r\܉EDӛ䛆

      10СMR̎mr(do)ʹWע^l(f)•w\܉E׃

      11ᆖͨ^@ׂڡwӲܰl(f)•ʲô뷨?

      12W˼ش(A(y)O(sh)Wش,ҿ\)

      13СY(ji)wԺǰٵ؁(f)\҂Q֮ӡ•wӮa(chn)еwڲl(f)•r̎oֹĠB(ti)ڰl(f)•r̎

      14ՄԒȻ•wӮa(chn)ôֹͣwӣ•͕ʧDz@Ӹ׃ČȥCλͬWԇԇ

      15Wʾʹl(f)•еⓡ䓳퇵VȪˮƿֹͣ

      16ͨ^Ō^쵽ʲôF(xin)@fʲô

      17.СY(ji)•wӶa(chn)Ӿ•ֹͣ•ʧ

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      1w`Ӯa(chn)•@ЩЕr߀܎ĬF(xin)չʾˮģ

      2ʾ1ߵͬW߅NÓĂ(c)ʾ2ùÓ

      3ᆖ ʲô

      4Wش𡣣•

      5˼1󣬽ӽˮʲôrl(f)أ˼2ڹĵı浹һcˮùÓˮ֕ʲôF(xin)l(f)أ

      6̎ʾ漤ˮÓˮ

      7׷wӎʲôF(xin)҂W֪RጄŵĬF(xin)أ

      8.WR

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      JRﲻͬİl(f)•ʽ

      1ՄԒw܉a(chn)•ôȻеĄͨ^ʲôʽl(f)•

      2ҕlĽ•

      3ͨ^ŵҕl˽⵽ʲô

      4WR̎PPTY(ji)xB~l(f)•ķʽ

      5СY(ji)oՓ߀еĸw•wӮa(chn)

      չ(yng)

      1չؐҵĵĹ£Ӹ

      2ᆖͨ^ČWի@ʲô

      3ՄԒ•ӂ҂ģ•׃ʲôc

      nСY(ji)

      •Įa(chn)c̰12

      һԪ£̲ķ

      1wF(xin)Ćעℓ(chung)O(sh)龰l(f)WWdȤ

      2ͻČWc(do)Ww팍ǫ@ȡ֪R͌WƌW̽ӵҪֶ

      3ҕW(jng)Hܵע(do)WӅcĿƌW̽B(yng)WH͟У܉?q)W

      4W•Įa(chn)c^̵̽

      5Ìȥ̽Ӱ•Եԭ

      6•Ƶ;

      7˽F(xin)g(sh)c•P(gun)֪Rđ(yng)

      ̌Wyc

      ̌Wc

      1WMлWB(ti)Ⱥ̓rֵ^ȷѬպB(yng)(do)WWƌW̽k

      2W•Įa(chn)c^̵̽

      3Ìȥ̽Ӱ•Եԭ

      4•Ƶ;

      5˽F(xin)g(sh)c•P(gun)֪Rđ(yng)

      ̌Wyc

      1(do)WӅcƌWоĿƌW̽^̺ͷȷĽ̌W

      2O(sh)Ӌ̽ČC•Ӯa(chn)΂ġ

      3W֪R•F(xin)ķጡ

      4•ΣԼߌW'h(hun)R

      5O(sh)Ӌ̽ČC•cʲôP(gun)

      nrţ

      ¹6(ji)Ӌ9nr

      ԿƌW֮1nr

      һ(ji)•Įa(chn)c1nr

      (ji)•2nr

      Ĺ(ji)•ΣͿ1nr

      幝(ji)•1nr

      һ†Ԫ(f)czy1nr

      •Įa(chn)c̰13

      һ(chung)O(sh)龳 n5犣

      ҂һM•҂܇иNӵ•(yu) ҂ĕɐ•sܸɔ_҂ČWʹ҂韩벻˽һЩP(gun)•֪RôՈSһ(do)SͬW̽•֪RČ

      ͨ^Windowsϵy(tng)ԎýwřCؐҵġ\?q)WչʾIJΈDʹWе@ͨ^ýwnһЩҊ•ՈW˼@Щ•ʲôwl(f)ģĶʹWa(chn)ɆS˼Sͨ^•(chung)O(sh)龳l(f)dȤĶn

      ҂oro̲ں͸Nӵ•򽻵ܲ뵽•ȻͬF(xin)(zhn)еĸ߿Ƽ“(lin)ϵһĿǰݵһҹ˾ѽ(jng)ɹƳһNʽ•ɲͨĘl(f)IJӏһN•TÁuuеؐ^ʹݿfCځøԒ•t@Щʲô•l(f)•҂?ni)˶ ֮ ҊҲȥo֪ۙͬW @tϢеo҂Ҳȥ]Ҫ•ȥlǣ挦ܵĂ҂܉֟o߆᣿Л]з•ĺkʮךqij҂߀]ȥMô҂ƌWһȥ̽һ·•ĺk

      @r㌢WһȤ龳̎ʾ

      Oӱfّ֪֪(zhn)•˅ҪЧط҂Ҫ֪ʲô••Ӯa(chn)ģ΂҂߅

      һ(ji) •Įa(chn)c

      ̽ vn35犣

      1ͨ^̽Ի̽•Įa(chn)7犣

      @^̷EMУ̽ԻөСY(ji)

      1)̽Ի(3犣

      ̎?q)WBϵ؄eԺ󣬽MWӣϵIJʹl(f)•ȱȿlİl(f)•࣬lİl(f)•Є(chung)

      ڻ^ҪW

      w򞣺׌wl(f)•ģָ|l(f)•wrʲôX

      ˼

      wl(f)•rcl(f)•rʲôͬ

      wl(f)•rʲôͬ

      ӣϵоʹwl(f)•̎cӑՓmoʾ(do)ȻՈW_оY(ji)صİl(f)•ʾٝp͹Ą

      ͬw򞣺Լĺ^fһԒwϵĸX

      2)СY(ji)(1犣ϸJRĻA(ch)ϿY(ji)wl(f)•ԭ•wӮa(chn)һаl(f)•w

      1•wӮa(chn)һаl(f)•wӡ

      3)(2犣wİl(f)•F(xin)̫ˣλͬWҽBһN^صİl(f)•

      ע⣺Ȥİl(f)•rWy{(dio)̎Ȥİl(f)•}׌WӑՓ磺لİl(f)•Bôl(f)•sôl(f)•ģӺnωl(f)ġˡ•ôӺʹôͬһwͬİl(f)•׌һl(f)ͬ•w•߀Ӱl(f)

      4)“(lin)ϵa(chn)Hr얹W֪R(1犣

      ӿ԰l(f)•l(f)•wӛҪr׌wӛҎ(gu)ȥ͕a(chn)cԭһӵ•̎ͨ^ýwnչʾڙCеPķŴDĈDпԿƬһȦȦҎ(gu)tĜƬD(zhun)ӕrS^Ĝ@ӾͰӛ䛵•جF(xin)SrM˂߀l(f)ôŎͼ⳪Pӛ•.

      2ͨ^•ĸ2犣

      ̎؏(f)ŵóĽY(ji)ՓµĆ}wl(f)•h̎ͨ^ýwn?q)Wչʾˮγc^(do)W˼ˮˮЕrF(xin)ʲôF(xin)ˮӮa(chn)ˮʹƽoˮl(f)γˮܷˮһ˼һ£wl(f)•ܕʲôʽh̎

      2wl(f)••ʽ

      3(chung)O(sh)龳O(sh)ͨ^ֽMCĶͻ̌Wcͻƽ̌Wyc35犣

      1)}l(f)˼S(4犣

      @Щ֪R҂F(xin)ھ́оһӷ••l(f)•o•oϢ҂u҂ӲܰԼoأע⣺•l(f)•҂?ni)˶ sȻ܌҂wɂ

      ̎ӆTWđ룺ʲôӵķܷ•

      WkУ

      øɶƣ̎uh•l(f)Ĵ•⣬ڂ^ГpĺһIJϺyգF(xin)߀]й

      ڌ•l(f)•ȥ̎uhѴ•ȥkMиɔ_Փvǿеǣ҂@ЩЌWr߀]ȥMо

      ۝ˮУˮס•l(f)•

      Mոס•l(f)•

      ùw|(zh)ס•l(f)•

      2)O(sh)(2犣

      ̎(do)WͬWķԷ^(q)eǰɷNMƫx҂nо̎ҲҪ?q)WҪһ£ԹĄWķeOԣьW˼·(do)̽Щ|(zh)Ԃ•ρ(j)WķMмO(sh)

      O(sh)һw܂•

      O(sh)Һw܂•

      O(sh)w܂•

      O(sh)ģղ܂•

      3)ֽMCO(sh)(5犣

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