国产精品色无码视频,国产av毛片影院精品资源,亚洲人成网站77777·c0m,囯产av无码片毛片一级,夜夜操www99视频,美女白嫩胸交在线观看,亚洲a毛片性生活

CɱLҊt˼R
(dng)ǰλãزĎ > ӋY(ji) > Y(ji) > Y(ji)

Y(ji)

W(wng)վزĎ|rg2019-05-09 12:46:01|ƄӶˣY(ji)

˿õijɿץoһЕrgM(jn)Џ(f)(x)䌍(sh)ԇҊ͟oǰ12N,ĽB@12NҊ}͵Ľ}˼Sģ߀B˸߿ԇ}Ľ}ͼɣṩԇ}Ĵ}ģwĽ}׌һ͕һͨһ͌!soղŶ

Y(ji)

1ֱ\(yn)ӆ}

}͸ֱ\(yn)ӆ}Ǹ߿ğc(din)ԆΪ(d)Ҳc֪RCϿ.Ϊ(d)F(xin)x}УtڿҳcDY(ji);Ӌ}гF(xin)ڵһС}yȞеҊʽw^̆}׷}.

˼Sģ壺D}P(gun)IڌDc^̌(yng)ͨ^D(bio)SP(gun)Ic(din)бeϢ\(yn)^M(jn)зĶQ};w^̆}׷}(yng)𲽷ٸ(j)ǰ^֮gɂw֮g“(lin)ϵг(yng)ķ̣Ķǰ^̵“(lin)ϵҪٶP(gun)ϵɂwg“(lin)ϵҪλP(gun)ϵ.?

2wĄӑB(ti)ƽ↖}

}͸wĄӑB(ti)ƽ↖}ָwʼK̎ƽB(ti)l(f)׃Ć}.wĄӑB(ti)ƽ↖}һµƽ↖}ЕrҲɌƽķƏVõĄӑB(ti)ƽ↖}.

˼Sģ壺õ˼SЃɷN.(1)Q}Ը(j)ƽlгз̷׃;(2)Dⷨ(j)ƽlĺϳɻֽD(j)D׃.

3\(yn)ӵĺϳcֽ↖}

}͸\(yn)ӵĺϳcֽ↖}ҊģЃ.һK(U)ĩٶȷֽĆ}С^ӵĆ}}P(gun)Iٶȵĺϳcֽ.

˼Sģ壺(1)K(U)ĩٶȷֽ↖}ҪעwČ(sh)HٶһǺٶֽrɂٶȵķ(yng)ȡK(U)ķʹֱK(U)ķ;Ѓɂwͨ^K(U)BtɂwK(U)ٶ.(2)С^ӕrͬrcɂ\(yn)һСˮ\(yn)СSˮһ\(yn)ӣrƽ߅ζtҲֽⷨЩ}ýЩ}tҪÈDⷨ.

4w\(yn)ӆ}

}͸w\(yn)Ӱƽ\(yn)Ӻб\(yn)ӣƽ\(yn)߀б\(yn)оDzֽⷨһnjٶȷֽ⵽ˮƽQֱɂ.

˼Sģ壺(1)ƽ\(yn)wˮƽֱ\(yn)Qֱֱ\(yn)λƝMx=v0t,y=gt2/2ٶȝMvx=v0,vy=gt;(2)б\(yn)wQֱϒ(’)\(yn)ˮƽֱ\(yn)ڃɂϷքe(yng)\(yn)ӷ

5A\(yn)ӆ}

}͸A\(yn)ӆ}rɷ֞ˮƽ(ni)ĈA\(yn)ӺQֱ(ni)ĈA\(yn)\(yn)|(zh)ɷ֞وA\(yn)Ӻ׃وA\(yn).ˮƽ(ni)ĈA\(yn)ӶوA\(yn)ӣQֱ(ni)ĈA\(yn)һ׃وA\(yn).ˮƽ(ni)ĈA\(yn)ڿĹP(gun)ϵR熖}Qֱ(ni)ĈA\(yn)ӄtڿc(din)r.

˼Sģ壺

(1)A\(yn)(yng)ȷwǷوA\(yn)ӣtwܵĺF=mv2/r=mr2з⼴;w\(yn)ӲDŽوA\(yn)ӣt(yng)wܵM(jn)ֽwָAķϵĺ.

(2)Qֱ(ni)ĈA\(yn)ӿԷ֞ģͣKģֻͣ܌wṩָAĵďͨ^c(din)RB(ti);ڗUģͣṩָAĻxAĵͨ^c(din)RB(ti)ٶȞ;܉ģֻͣṩxAķwc(din)rv(gR)1/2܉A\(yn)v(gR)1/2x_܉w\(yn).

6ţD\(yn)ӶɵľCϑ(yng)Æ}

}͸ţD\(yn)ӶǸ߿c(din)ă(ni)ÿڸ߿жF(xin)ţD\(yn)ӶɿɌW(xu)c\(yn)ӌW(xu)Y(ji)cֱ\(yn)ӵľCϑ(yng)Æ}ҊģBw͎ȣһ^̆}ҲԿR熖}Ԇ}ȃ(ni)C^(qing).w\(yn)}ĿţD\(yn)ӶcfɼA\(yn)ӵľC}ĿlʘO.

˼Sģ壺ţDڶɞ\(yn)“(lin)ϵԸ(j)\(yn)rҲԸ(j)\(yn)r.ڶ^̆}һ㑪(yng)(j)wһһw\(yn)rֱY(ji)ҳҎ(gu).

w\(yn)}(yng)oץɂʽGMm/r2=mv2/r=mr2=mr42/T2 GMm/R2=mg .A\(yn)ӵw(pǡϵy(tng))ɸ(j)ʽٷ;׃܉}t(yng)(j)ĹP(gun)ϵ܉׃ٸ(j)܉׃׃.

7C(j)܇Ćӆ}

}͸C(j)܇ĆӷʽЃɷNrһNԺ㶨ʆһNԺ㶨ٶȆһNӷʽDz˲rʵĹʽP=FvţDڶɵĹʽF-f=ma.

˼Sģ壺(1)C(j)܇~ʆ.C(j)܇Ć^DʾڹP=Fv㶨ɹʽP=FvF-f=ma֪Sٶv󣬠F،pС˼ٶaҲ،pСC(j)܇ٶȲpСļ\(yn)ֱF=fa=0@rٶv_(d)ֵvm=P~/F=P~/f.

@N^̰l(f)әC(j)ĹֻW=PtӋW=FsӋ(?yn)F׃).

(2)C(j)܇Ժ㶨ٶȆ.㶨ٶȆ^̌(sh)Hɂ^.Dʾ^1DŽ^a㶨F㶨ɹʽP=Fv֪SvPҲֱP_(d)~P~ʲ;^2ͱ~\(yn).^1ԡP_(d)ٶ_ʼ׃Y(ji)(bio)־.^2ԡٶ󡱞Y(ji)(bio)־.^1l(f)әC(j)ĹֻW=FsӋW=PtӋ(?yn)P׃).

8ĵľCϑ(yng)Æ}

}͸ĵľCϑ(yng)Æ}һ.һwC(j)еغ㆖}ڶwϵy(tng)C(j)еغ㆖}wܶ톖}wϵy(tng)P(gun)ϵ(غ)}.wϵy(tng)ĽMģʽɂBһwü(x)pUBăɂwֱӽ|ăɂw.

˼Sģ壺}Ľ}һЄܶغ㶨C(j)еغ㶨.(1)ܶʹ÷ΣֻҪxw^ֱг̼ɣܶm^;(2)غ㶨ͬm^rֻҪЩpЩӣ(j)pٵӵз̼;(3)C(j)еغ㶨ֻغ㶨ɵһNʽW(xu)ҲdzҪ.ܶ}ĿÃɷNN⣬ɸ(j)}Ŀr`xȡ.

9W(xu)(sh)(yn)ٶȵĜy}

}͸ٶȵĜyǺܶW(xu)(sh)(yn)ĻA(ch)ͨ^ٶȵĜyоٶȡܵ׃Ҏ(gu)о׃ֱ\(yn)ӡ(yn)CţD\(yn)Ӷ̽ܶ(yn)CC(j)еغȌ(sh)(yn)жҪM(jn)ٶȵĜy.ٶȵĜyһЃɷNһNͨ^c(din)ӋrlWƬȷʽ@Î׶Bm(x)ȕrg(ni)λƏĶоٶ;һNͨ^Tȹ߁yٶ.

˼Sģ壺õһNٶȺͼٶͨҪõ׃ֱ\(yn)еăɂҪՓvt/2=vƽ=(v0+v)/2ڦx=aT2˱MpС`ٶȕr߀Ҫõ.ùTyٶȕryƬͨ^TõĕrgԓΕrg(ni)ƽٶtJ(rn)ԓc(din)˲rٶȣv=d/t.

10}

}͸һNҪ늌W(xu)Ԫڌ(sh)HVđ(yng)ãǚv߿֪Rc(din)֮һx}ʽF(xin)yȲҪݸƽаݵěQؼĄӑB(ti).

˼Sģ壺

(1)ݵĸñֵ(C=Q/U)xһʾݼ{늺ɵĶκm.һ_ҲǴ_(Ľ|(zh)Լ׺γߴQ)cǷ늺Ķg늄ݲĴСȾoP(gun).

(2)ƽаݣƽаɃɘOeɘOgx|(zh)늳(sh)QMC=S/(4kd)

(3)ĄӑB(ti)P(gun)IŪЩ׃ЩDz׃ץסʽ[C=Q/UC=S/(4kd)E=U/d]ɷNrһ늺Qֲ׃(늺_Դ)ǃɘOg늉Uֲ׃(ʼKcԴB).

11늈е\(yn)ӆ}

}͸늈е\(yn)ӆ}|(zh)һC늈늄ܵW(xu)}оc|(zh)c(din)W(xu)һͬѭ\(yn)ӵĺϳcֽ⡢ţD\(yn)ӶP(gun)ϵW(xu)Ҏ(gu)߿мx}ҲоC^(qing)Ӌ?}?.

˼Sģ壺

(1)̎펧늈е\(yn)ӆ}(yng)ăɷN˼·֢لW(xu)˼·ҕӵ\(yn)^̷Ȼ\(yn)ţDڶɲY(ji)\(yn)ӌW(xu)Ҏ(gu)λٶȵ.ڹ˼·(j)늈׃(j)ȫ^̵ĹP(gun)ϵ_ӵ\(yn)r(ʹЃ(yu)x).

(2)̎펧늈е\(yn)ӆ}(yng)עǷ񿼑]ӵ

|(zh)xӵ΢^һ㲻Ӌ;

ҺΡmСȺ^һ㿼];

rҪҕwr(j)}е[lД.

(3)̎펧늈е\(yn)ӆ}(yng)ע⮋\(yn)܉EʾDڮDĻA(ch)\(yn)Î׺֪RP(gun)ϵǽ}ͻƿ.

12ڴňе\(yn)ӆ}

}͸ڴňе\(yn)ӆ}ښv߿ԇ}п^}ʽ^εx}ҲоC^(qing)Ӌ}y^Ҋ}ʽN

(1)ͻ傐ƝŽA\(yn)ӵ\(yn)ӌW(xu)(돽ٶrgڵ)Ŀ;(2)ͻӴ⼰cW(xu)}CϷĿԌ˼S;CĿ;(3)ͻ֪Rڌ(sh)Hеđ(yng)õĿԌ˼SՓ“(lin)ϵ(sh)HĿ.

˼Sģ壺̎\(yn)ӆ}rذաһ҈AҰ돽(R=mv/Bq)(T=2m/Bq)rgķ.

(1)AĵĴ_?yn)傐ƝfָA(j)fv\(yn)܉Ec(din)(һňăc(din))fķ؃ɂ傐ƝfLĽc(din)A.AλñضڈAһҵд.

D

(2)돽Ĵ_Ӌ㣺ƽ׺P(gun)ϵԓAİ돽(\(yn)ӈA(yng)ĈAĽ)עһҪĎ׺c(din)ٶȵƫ()ڈAĽ()ABcоĊA(нǦ)2(Dʾ)?==2.

(3)\(yn)ӕrgĴ_t=T/2лt=s/v,Ц՞ƫTs܉EĻLv龀ٶ

ԴW(wng)j(lu) ؟(z)•ăHތW(xu)(x)a(chn)(qun)}Ո“(lin)ϵ҂rh


Y(ji)ɻ“(lin)W(wng)Ñṩ,D(zhun)dՈԭϢ,xx!
朽ӵַhttp://www.hmlawpc.com/gongwen/110142.html

]}
P(gun)