~ 2 f::\" " ~ ,2003. n 510 IIe L 110npe1110r S. F= , 27 135 136. 2m, 2mm2. 1011 N/m 2. 137. 300N/m2 2-1011 N/m 2 138. l /, S, 1 3 8 13 9 139. (F) no 140.Han lmm. 0,5N/m, 13600 kg/m 3 , 138 J/kgK. 141. l(J147rr2+M2p4r3n}: 13 PM1rpM2r3RTJ1 r >= 15cm. > +: 12) 20. jt N +N =

p)nr2. N p)nr2, Po-nr2 jt': 2 = nr

= ---2 . nr l{al\o noc,1P 21. To(Po7rr2 - =- = - =_.::...:.;;....::.. __ Po7rr2 pgh. pRT g ,2 Rr2 22. 96

+ pgH. 23. V1 +V2 =2V... (*) V= V1 V = V2 (*)(**) PoV v2 =-- ..

2. PtPtPo = - pgH. - pgH . 2pl- + pgH)p1 + p0pgH + pgH +(pgH)2 Pt= 2 (13,5kPa) ISOkPa. Pt= + pgH= 180kPa. 24. PoAVOA=pAVA 4 VA= =-l 2 = V = =2. VoA na =---=ISOkPa. VA 25. mk1 mk,g +kx Pt=S x+l. na mklg+kxkl =+-SS kl s

97 Cl': 1+--- . ( k/MV) SmRT1 26.\1,01.1:lcHIIl Tt:'IIIOI' .1 11tra llllt!Jt h +h0)-(H // )'IIO'IPTIIIIM Pr=.,..pgH = pgH 1 r;oj .. l :taiiOII,I p1h0 =p7h. +pgH0)h0- r JJu+pgH)(H0 +h0

pgho) + pgH 27.H1:1i0 11111.! O!liiO.U=nCvf>.T =-nR(T2

=---=20,2kJ; 22 mRT1 pf>. V =-Rf>.T= --= 8,1kJ; Q = f>.U = 28,3 kJ . 106 -------------------------------------------------52. 1 mRT1jQ=A=nRT11n-=--ln-. Pt 1[=---- mRfn 5 Q = nC =2_ R(T3

Q 1+-ln- =- --ln- . ( 2 ) ( 2 ) 5 mR5 53. 3-1. 3 Q =

+ 13 = (V3 - V1) +- nR(T2 -

2 2-3 1:: :: v, 5 54.

= Par V(k -1) = nRT(k -1) v + nRT ln k. = nRT(k -1)- k= nRT(k -1-ln k). 55. vv + nRT0 !n__.!._= nRT0 !n__!!._. Vov2 V1 + V2 = 2V0 V1 = kV2, 2kV0 V1 =-- 1+k 2V0 V2=---1+k A=nRT0 ln---ln-- =nRT01n-- =p0V01n-----. ( V0 V1)(V02 )[(k+1)2

107 -------------------------------------------------56. PtV1 V2 1QY= 21,4, log 21,4 = 1,33. 57. V1 T1V?-1

=T110r-t. 7 r=-.

5 jr, mR = D.Uv - )= -

= 672,3 . M(y-I) 58. e)=ES!!.l". mL.mLg gq>)= --. 22ES2ES 136. = "= mgL (1-sitt q>). 2ES IES()2. /':,.[ 2l =01%. lESl' 137. 1 ES()2 w=W=1-z-bl VSl2l l Q2 p0Sh=-RT. QI-Q2 h=--=61cm. PoSM 184. t1 =22 t2 = 100 Q1 = -t1) = Q2 Q2 > Q1

185.

-=---=87%. 165 186. TOIIJIOTC m1A+m1c(t1 -t)=m2c(t-t2). q1 q2 l r R2 2 2 __Q__ . .. cou d 12 ) r:::::.::g, -, -- -r----... ..----- _... s1 ' ' --- ' ' ' : S2 22 E2S =.!L. 2ES = pSd. E=...P__d. d r-5,-2 d 1'?.-2 ' ' : ' -'- - ' ' ' : _-... 224. pd =--r =--. 3::0 =pd na Lr. 225. r S: 182 --------------------------------------------------2 = l E=_E_r, - =--r r (\\ s 2 2 5 t1 d-x 277 q>-q>t=(E-E1)(d-x)q>-q>1

E(d OJliiUCIIO q(d-d2cl \1,02 +ql d, +q2 -q2 q>l 315 q1 + q2 = q 316. +q, -q q=CU =EoSU. d1 -d2 he pacnopel)el!atnpa1>a: ..2mn = VSin qJ = VSin 2mnEtgq> 476. \l:ti'IH'TiiOI'lla Cl: H()JICTaiiTIIOM JltJ .lyliy R 282 --------------------------------------------------R = ABtg/3= rtg-2- . R = rtg75. v2 qvB R v = qBrtg15= 10s mls. 477. na v..,= v0. tta qE na =-. . z-occ Fz= qv..,B= qv0B. no v0 __ qB n n = ayt2 = qE )2 2

2 qB Yn=n Yr-aoq> n - v..,v0 tgq>=-=-. vyayt 478. tgm- vo "'- qE qB v0B tgq>=--. n27rE no na eU =-- =- . md t={2d=d{2r;. v-;;v;u t t = nT , d {2r; =n

. v;u ed282 = --2 --2 n= 1,2, ... n 283 ) IIJIO'It' .. v eU 2 d= vt+--t. 2md IIOI' V, COfl 11el11' 11.10'11\ 479. 21mr(J)=---. 4:7rEor2 ,1 mr(J)1- = --2erro1B 4m::0 r mrjro1- roj(ro1 erro1B. ro1 (1)1 ro1 2ro1 6ro =. 2m 480. r.c \iiO R jaIHH) 2r R.

!) lj. 2111vR 480 . 01.1. liOj0\1 2 \ /:,/ ..... 506 liF .. N( N---t 294 2 F= N Jlo(bl)l. 2JrR. 2N + 1"' 2N.rra 2N =.!._ lbl. 507. t yr-aoOJt

2 /LB 5 7 tJ.l ( l = !1F l = l . f = f !11. f [; = }_IL2B. 2 2 1 = mg sin(OJt). LB 508. 2 la=}_IR2B. mRa=}_!R2B. 222 295 ------------------------------------------------- t 509. JiaTe'IJIOCT: =pghrbh1 - 22

mg ,.la1IJa1987. (18) 1997. (19) 11 1985. (20) tHe.ranuha{/{aanm). 1994. (21) 3agatu 2000. (22) u 1982. (23) 11.1 1976. (24) 3aga