- ߿Ҫʽ֪Rc ]ȣ
- P]
߿Ҫʽ֪RcR
ƽ\ӹʽY(ji)
1.ˮƽٶȣVx=Vo 2.QֱٶȣVy=gt
3.ˮƽλƣx=Vot 4.Qֱλƣy=gt2/2
5.\ӕrgt=(2y/g)1/2(ֱͨʾ(2h/g)1/2)
6.ٶVt=(Vx2+Vy2)1/2=[Vo2+(gt)2]1/2ٶȷcˮƽAǦ:tg=Vy/Vx=gt/V0
7.λƣs=(x2+y2)1/2,λƷcˮƽAǦ:tg=y/x=gt/2Vo
8.ˮƽٶȣax=0;Qֱٶȣay=g
ע
(1)ƽ\DŽ׃\ٶȞgͨɿˮƽĄֱ\cQֱw\ӵĺϳ;
(2)\ӕrg߶h(y)ӰcˮƽٶȟoP;
(3)cµPϵtg=2tg;
(4)ƽ\Еrgtǽ}PI;(5)\ӵwxмٶٶȷcܺ(ٶ)ͬһֱϕrw\
ԭӺԭӺ˹ʽY(ji)
1.ɢԇY(ji)a)(sh)ĦӲl(f)ƫD(zhun);(b)ٔ(sh)Ӱl(f)^ǶȵƫD(zhun);(c)^ٔ(sh)ӳF(xin)ǶȵƫD(zhun)()
2.ԭӺ˵ĴС10-1510-14mԭӵİ돽s10-10m(ԭӵĺʽY(ji)(gu))
3.ӵİl(f)cգԭӰl(f)B(ti)Swr,Ҫݗ()һlʵĹ:h=E-Eĩ{ܼSw
4.ԭӺ˵ĽMɣ|(zh)Ӻ(y(tng)Q) {A=|(zh)(sh)=|(zh)Ӕ(sh)+Ӕ(sh)Z=늺ɔ(sh)=|(zh)Ӕ(sh)=Ӕ(sh)=ԭ(sh)ҊP63
5.ȻF(xin)侀(ǺԭӺ)侀(\ӵ)侀(L^̵늴Ų)˥׃c˥׃˥(а딵(sh)ϵԭӺ˰l(f)˥׃õĕrg)侀ǰS侀ͦ侀a(chn)ġҊP64
6.˹̹|(zh)ܷ:E=mc2{E:(J)m:|(zh)(Kg)c:еٶȣ
7.ܵӋ㦤E=mc2{mĆλkgrEĆλJ;mԭ|(zh)λurĦEλuc2;1uc2=931.5MeVҊP72
ע
(1)Ҋĺ˷(غ׃p˾׃Ⱥ˷)Ҫ;
(2)ӛҊӵ|(zh)(sh)늺ɔ(sh);
(3)|(zh)(sh)늺ɔ(sh)غ,(j),_˷̵PI;
(4)P(ni):ԭӵܼY(ji)(gu)ҊP49/ԭӵơҊP53/ͬλ(sh)䑪ȾͷoҊP69/غ׃ʽʽėl˷ѡҊP73/p˾׃ɿ؟˷ҊP77/|(zh)Y(ji)(gu)JR
ķ乫ʽY(ji)
1.䶨ɦ=i {;i:ǣ
2.(е|(zh))n=c/v=sin /sin {ɫɢҊмtСn:c:еĹ٣v:|(zh)еĹ٣ :ǣ :ǣ
3.ȫ䣺1)Ľ|(zh)Mջ՚Еrl(f)ȫRCsinC=1/n
2)ȫėlܽ|(zh)|(zh);ǵڻR
ע:
(1)ƽRҎ(gu):ɵȴ̓,cƽRQ;
(2)RҎ(gu):̓,⾀߅ƫ,λ픽ƫ;
(3)⌧wSǹȫČHáҊP12,ŴRR,ҕRǰR;
(4)ӛNWxijҎ(gu),÷()Ҏ(gu)ɡ·Ŀ·Dǽ}PI;
(5)ͨ^Rl(f)ɫɢҎ(gu)ɣϹ߅ҊP16
늴ʎ늴ŲʽY(ji)
1.LCʎ·T=2(LC)1/2;f=1/T {f:l(Hz)T:(s)L:늸(H)C:(F)
2.늴ŲЂٶc=3.00108m/s=c/f {:늴ŲIJL(m)f:늴Ųlʣ
ע:
(1)LCʎ^,^rʎ;rʎ^;
(2)˹f늴ňՓ:׃()a(chn)();
(3)P(ni)ݣ늴ňҊڶP215/늴ŲҊڶP216/o늲İl(f)cաҊڶP219/ҕ_ҊڶP220
wĠB(ti)
ضȣ^w̶;^ϣw(ni)ӟoҎ(gu)t\ӵĄҳ̶ȵĘ־
WضczϜضPϵT=t+273{T:Wض(K)t:zϜض()
weVwռ(j)ĿgλQ㣺1m3=103L=106mL
pλewlײڶa(chn)m(x)ĉ˜ʴ≺
1atm=1.013105Pa=76cmHg(1Pa=1N/m2)
2.w\ӵcg϶;ײ˲g⣬;\ʺܴ
3.wĠB(ti)̣p1V1/T1=p2V2/T2{PV/T=TWض(K)
ע:
(1)wă(ni)cwweoPcضȺ|(zh)P;
(2)ʽ3lһ|(zh)wʹùʽrҪעضȵĆλtzϜض()TWض(K)
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