Output file

Hq va ten thi sinh:....................................... .sa bao danh:............................................. ..Ch& kY giam thi t:SO GDDT B C LIEUj cHiNH THirc I

(G6m 01 trang)KY THI CHQN HSG LOP 10,11 VONG TiNH NAM HQC 2009 - 2010Mon thi: V T LY* L((p: 11ThOi gian: 180 phut (Khong k thm gian giao ct)Can 1: (4 di m)Tren trfut mot thang may co treo mot vat n g, vat nay each san mot khoang h. Thang may bAt d!u di len tir m t diit voi gia t6c a. Sau thai gian to day treo hi dlrt: do d6t chay.Tinh thai gian d vath san k8 tir h!c d6t da;v.Tinh khoang each thang dtmg cua vat tir h!c dot day va h1c ch san.

CAn 2: (4 di m)M()t cai thang tl,ra vao tuang h N2BpB2(1- J.l tana)2(7)p1-pJ.lp!5;:::::> tana 212 = 1,12(1- ,u tan a)22p2Tu (6) va (7)l+J!Jl1 2V y Ctmin(0,5d)

Cau 3: (4 di m)a. Vi phong khong kin ddi v&i khong khi nen ap suftt khi trong phong luon bfLng ap sufit khi quysn, con th tich khi hl ths tich phong, do do ta co:(0,25d)yFmsB(0,5d)(0,5d)Lugng khi thay d&i: &nm1 - m2P.V .M (1_-J_J(O,Sd)RTzVmP= 1 at, V=30m33.104 /,M29g/mol,R=8,2.10- 2 at.l/mo1KT1 = 17+273=290K, T227+273=300KAm= lx3.104x29(_1_ 1_J122.103( )= 122(K)8,2.10-2290300'b. Ap sudt bqt khi t