1、 g20750g1218g10399g10812g2552g13881g12682g7806 g126421g20139g948g19593g20139g949 豫南九校20182019 学年上期第二次联考 高二物理参考答案 1g714g16403g7616:Ag17977g20137g1117g8965g6393g12636g5445g1941g3434g11444g8114g5669g712Bg1117 UI R= g1085g7263g18423g11096g8708g1644g8965g4554g1145g11444g712Cg11109g2264g2287g16024g5553g11
2、444g7263g11109g9408g4662g1958g1286g5522g5439g11444g14125g17820g2374g1130g11109g14125g11444g7516g20150g712g7029Dg8595g11934g452 2g16403g7616g726g7785g6558g11109g19563g4554g5563g712 AB aR bc= g712g2552 SAB aR b= g712g13956g12539g16403g5575g726 S c = g452g17977g20137Cg8595g11934g452 3g714g16403g7616g72
3、6g1485g20168g5951g5575g712g8703g1114g9961g11109g14759g3416Og9961g1239g11087g11444g3434g5482g3927g4671g1130E1/2g712g5507Ng9961g3892g11444g9961g11109g14759g12331g14371Pg9961g7206g712Og9961g3434g5482g4018g2595g3374g6256g12138g712g2616g3434g5482g3927g4671g1130E2=E1/2g712g6256g1301E1:E2=2:1g712g7029Bg859
4、5g11934g712ACDg19273g16927g452 4g714g16403g7616g726g11105g3374g2591g11797g712g9473g2264g2568g19563g3224g11444g1082g1083g1108g18200g2102g5286g13956g1981g1086Rg1122g13956g712g11109g2491g16024g9083g17439g12575g11109g2491g712g11109g9073g16024g9083g9073g17911g9473g2264g2568g19563g3224g1083g18200g2102g114
5、44g11109g9073g712g6256g1301g5507g9473g2264g2568g19563g3224g16406g3940Pg9473g2144g1117g3934g7206g712g5286g13956g5739g11109g19563g7472g3927g712g7029g11109g2491g16024g12138g7072g1912g3790g3927g2622g2047g4671g712g13884g9473g2264g2568g19563g3224g1083g18200g2102g11444g19563g1644g3416g1072g11556g2047g4671g
6、712g11109g9073g16024g12138g7072g1072g11556g3790g3927g712g7029Bg20137g8595g11934g452 5g714g16403g7616g726Bg463g16403g7616g464g11109g19563Rg11444g19563g1644g1130Rg729U2I2g72941 g7294 g714 g5507g5424g1955g6613ag7206g712g7481Eg729U1g711I1rg712g2552U1g7295 Vg712I1g729P1U1g7292.55 Ag7290g7145 Ag714 g5507g
7、5424g1955g6613bg7206g712g7481Eg729U2g711I2rg712g2552U2g7294 Vg712I2g7291 Ag712g13956g12539g16403g5575Eg7296 Vg712rg7292 g714 6g714g16403g7616g726ag10803g5206g8595g11109g712g2567g2144g11444g11109g3434g2251g8804g5283g2625g5142g712bg5206g17231g11109g712g2567g2144g11444g11109g3434g2251g8804g5283g2625g25
8、95g714 g1301g7076g1411g1130g11844g12454g4649g17041g712g7076g1411g6256g2567g11444g11109g3434g2251g3927g4671g11302qEg712g7145g2625g8804g5283g2625g5142g712g2102g7616g2567g2251g4018g3374g712g2121g1082g19858g13603g4480g5316g2625g5142g1663g17820g714 g16878g1082g19858g13603g4480g1086g12550g11556g7145g2625g
9、11444g3945g16386g1130g712g2121g11105g5283g16017g7569g1318g5575tan=2qE/2mg=qE/mg g1301bg10803g1130g11844g12454g4649g17041g712g2567g2251g4018g3374g714g16878abg19492g11444g13603g4480g1086g12550g11556g7145g2625g11444g3945g16386g1130g712g2121g11105g5283g16017g7569g1318g5575tan=qE/mg g5575g2144=g712g6256g
10、1301g7785g6558g2064g1413g11797g16886g2591g11797g712bg10803g3416g5852g9961g11444g8595g1083g7145g712g7029Dg8595g11934g712ABCg19273g16927g727g7029g17977g726Dg714 7g714g16403g7616g726g11105g13535g11109g19563g2748g19854g13535g11109g19563g7481g1955g11797g16886g2591g11797Cg17977g20137g8595g11934 8g714g1640
11、3g7616g726g5424g1955g19485g2616g7206g712g11109g4585g3224g1108g7599g19492g11444g11109g2491g12665g1214g11109g19563R2g279R2g1108g12575g11444g11109g2491g712g4671g1214g11109g9408g11444g11109g2264g2287g452g5507g5424g1955g7133g5424g7206g712g11109g17439g12387g4554g7206g712g11109g17439g1117g8913g7481g11109g9
12、073g712g11109g4585g3224g7599g19492g11109g2491g12665g1214g11109g9408g11444g11109g2264g2287g712g2121g11797g11109g4585g3224g7599g19492g11109g2491g3790g3927g712g7599g19492g3434g5482g3790g3927g712g9186g9508g6256g2567g11109g3434g2251g3790g3927g712g2121g9186g9508g4662g2625g1082g17920g2264g452g11105g1214g11
13、109g4585g3224g11444g11109g2491g3790g3927g712g11105g1948g5439Q=CUg2591g11797g712g11109g4585g3224g1082g11444g5206g11109g18431g4662g3790g3927g712g7029Dg8595g11934g712ABCg19273g16927g7271 2 3 4 5 6 7 8 9 10 11 12 D C B B B D C D BD AD BCD AC g20750g1218g10399g10812g2552g13881g12682g7806 g126422g20139g94
14、8g19593g20139g949 g7029g17977g726Dg714 9g714g16403g7616g726g11109g4585g3224g11109g2491Ug729Q/Cg7292Vg727 R1g1108g12575g11109g2491U1g7294Vg712g2121R3g1108g12575g11109g2491U3g729U1Ug7292Vg708g62146Vg709g712g6256g1301R4g1108g12575g11109g2491U4g72910Vg708g62146Vg709g712g5507U3g7292Vg7206g712R4g729400g71
15、2g5507U3g7296Vg7206g712R4g72980g452g2591g16369Bg451Dg8595g11934g452g12676g7800g726BD 10g16403g7616g726 Ag714 g14613P1g451P2g1130g2620g12285g11109g14759g712P1g451P2g1147g19492g11444g5315g1281g2251g1130g6594g7125g2251g712g5286g1092g2251g11444g7145g2625g2748g17999g5334g11444g7145g2625g1085g1981g1072g75
16、69g11556g13551g1082g712g6256g1301g17240g9961P2g1072g4554g1674g7458g13551g17920g2264g712g11105g1214g1108g13877g1147g19492g11444g17421g12267g17338g7573g17338g3927g712g4531g1308g1147g19492g11444g5315g1281g2251g1167g4705g17338g7573g17338g4671g712g6256g1301P2g11444g2256g17999g5334g3416g2047g4671g712g1799
17、9g5334g3790g3927g712g7029Ag8595g11934g712Bg19273g16927g727 Cg714 g14613P1g451P2g1130g5426g12285g11109g14759g712P1g451P2g1147g19492g11444g5315g1281g2251g1130g2664g5445g2251g712g5507P1g451P2g1147g19492g11444g5315g1281g2251g5792g4013g12665g1214g2625g5619g2251g11444g7206g1609g712P2g4705g13573g11632P1g16
18、74g2352g17999g3382g2712g17920g2264g712g8596g7206P2g17999g5334g11444g3927g4671g2748g2256g17999g5334g11444g3927g4671g18221g1085g2568g712g1398g7263g7145g2625g7017g2568g712g7029Cg19273g16927g452 Dg714 g14613P1g451P2g1130g5426g12285g11109g14759g712P1g451P2g1147g19492g11444g5315g1281g2251g1130g2664g5445g2
19、251g712g14613g17999g5334g17843g3927g712g2664g5445g2251g4671g1214g2625g5619g2251g712P2g1674g12267g5619g17920g2264g712g2664g5445g2251g2047g4671g712g2121g2256g17999g5334g2047g4671g712g5445g2251g1674g17231g2255g712g17999g5334g2047g4671g712g1674g2256g17999g5334g451g17999g5334g18221g2568g4671g11444g7458g1
20、3551g17920g2264g712g7029Dg8595g11934g452g7029g17977g726ADg714 11g714g16403g7616g726g11105g1214Eq=mgg712g7029g2748g2616g3434g5482g11444g7145g2625g1130g1086g8804g5283g19858g620845g16386g7116g2625g2595g1083g7145g712g3416g8596g1405g13726g11444g7206g1609g10393g1411g11444g17999g5334g7472g3927g712Bg4649g45
21、2g11105g14125g18431g17820g2374g1955g13099g2591g5575g4671g10803g2591g2144g17902g8804g5283g1405g13726g712g7029Ag19273g712g3416g8596g17911g12347g1117g712g11109g3434g2251g1072g11556g4649g4671g10803g1674g8595g2255g712g7029g7530g7904g14125g1085g4536g5762g712Cg4649g452g4671g10803g2144g17902g8804g5283g19858
22、g620845g16386g7116g2625g2595g1083g7145g11444g1405g13726g7206g726qELsin-mgLg7081g713cosg709= 12 mv2g712Fg713 2mg mg=2vm R g712F=g7083 2g10722g709mg g7029g17977BCD 12g16403g7616g726 Ag714xg3374g13551g11444g2103g13551g7116g10679g16024g12138g11109g3434g5482g5334g11444g3927g4671g712g2121g11797Ng3892g3434
23、g5482g3927g4671g1130g19750g712g7029Ag8595g11934g727Bg714g1278Mg9961g2144Pg9961g712g3374g17041g7116g10679g11444g13581g4649g1644g1912g2047g4671g2622g3790g3927g712g2121g3434g5482g1912g2047g4671g2622g3790g3927g712g7029Bg19273g16927g727Cg714Mg9961g11444g11109g2287g1130g19750g712MNg19492g11444g11109g2287g
24、4671g1214g19750g712g3344g8943g11109g3434g13551g7145g2625g11109g2287g19581g1406g712g7029g3416MNg19492g11109g3434g7145g2625g8943xg17828g8595g7145g2625g712g7029Cg8595g11934g727Dg714g11105g3374g17041g2591g11797g712UMNUNPg712g7029g11109g3434g2251g1674g2255qUMNqUNPg712g1278Pg12331g2144Mg17911g12347g1117g7
25、12g11109g3434g2251g1674g17231g2255g712g7029|WPN|WNM|g712g7029Dg19273g16927g727g7029g17977g726ACg452 13g714 10.04 4.700 220 14g714g7081g709g11109g17439g3374g4018g3374g6256g12138g727 g7082g70910g727g9305g5334g2423g20744g712g11109g19563g10679g3790g3927g727 g7083g7090.3g7270.6g7274.8 15g714g16403g726g70
26、81g709g12387g4554g7206g712g11109g4585g11579g1420g7133g5424g10470g5681g712g11109g17439g1117g11444g11109g9073g726 1 220 18 12EI AR R= = =+ + g7084g2102g709 g7082g709Sg19485g2616g712g11109g17439g3892g1214g12387g4554g10470g5681g7206g712g11109g4585g1108g12575g11444g11109g2491g726U=IR2=112V=12V g7133g5424
27、g2622g712g11109g4585g1108g12575g11444g11109g2491g113020Vg712g7029g17929g1301g2622g9073g17911R1g11444g5739g11109g18431g1130g726 g440 g440Q= Uc=g70820g94912g7093010g9496C=2.410g9494C g7086g2102g709 16g714g16403g726 g7081g709g4671g10803g1674g12971g5283g6347g17920g2264g712g8804g5283g7145g2625g1674g2352g
28、2047g17999g11556g13551g17920g2264g712g12550g11556g7145g2625g1674g2125g17999g5334g1130g19750g11444g2352g2256g17999g11556 g13551g17920g2264g712g11105g10379g20143g12636g1212g4554g5563g5575g726qE+mg=ma g712 qE=mg g5575a=2g g20750g1218g10399g10812g2552g13881g12682g7806 g126423g20139g948g19593g20139g949 g
29、8804g5283g7145g2625g726x=v0t g12550g11556g7145g2625g726y= 212at g2552 tanyx = g13956g12539g2591g5575g726 0 tanvt g = g7086g2102g709 g7082g709g11105g1082g2591g5575y= 212at2 20 tanvg= g11109g3434g2251g1674g2255g1130W=g713qEy=g713mv02tan2 g7084g2102g709 17g714g7616g726g7081g709g4649g4671g10803Bg2567g22
30、51g2102g7616g726 FT=mgsin37o g7082g2102g709 FT=6g7140N g7081g2102g709 g7082g709g4649Bg2567g2251g2102g7616g726qE=mgcos37o g7082g2102g709 E=400N/m g7081g2102g709 g7083g709g10719Ag1674g2352g17999g11556g13551g17920g2264g712g4649Ag2567g2251g2102g7616g712g7785g6558g1953g9961g2251g11444g5283g16017g7569g131
31、8g2591g5575g726 FTcos37of=0 g7082g2102g709 FN=Mg+FTsin37o g7082g2102g709 f= NF （1分） g16403g5575g966M=1.08Kg g9481g2108g949 18g714g7081g709g7785g6558g20168g5951g2591g1301g11797g18051g712g11109g4480g17931g1941g1663g17820g11109g3434g7206g11444g17999g5334g2467g1130g11109g4480g2090g2256g17999g11109g3434g
32、7206g11444g17999g5334g712g7785g6558g2264g14125g4554g10806g7481: 20 012eU mv= g16849g12743g5575g2090g11109g4480g17931g1941g1663g17820g11109g3434g7206g11444g17999g5334: 00 2eUv m= （4分） g7082g709g11109g4480g4660g2090g1663g17820g11109g3434g2622g1674g2352g17999g11556g13551g17920g2264g14371g14743g1913g473
33、5g712g11105g3374g11106g2591g1301g11797g18051g712g2586g16305g11109g4480g14125g4660g2090g1663g17820g11109g3434g712g2467g2591g17902g2144g14743g1913g4735g1082g712g3344g8596g5507g11109g4480g3416g1663g17820g11109g3434g1117g1495g12331g18431g3927g12142Lg7206g712g11109g4480g4662g6275g3416g1663g17820g11109g34
34、34g11444g7601g7599g1082g712g14372g1455g2090g10720“g21761g4735”g10720g17041g712g16878g11109g4480g2122g4013g14125g4660g2090g11109g3434g7206g11444g1663g17820g11109g2491g1130Umg712g2121g7481: 201 2( )2 2meUL LmL v= g16849g12743g5575g2090: Um=0.5U0g712g13571g2616g3374g1161g2591g1301g11797g18051g712g3416g
35、1663g17820g11109g2491U=0.8U0-0.5U0g1147g19492g2568g2374g7206g712g17931g1941g1663g17820g11109g3434g11444g11109g4480g7184g8965g4660g2090g1663g17820g11109g3434g6275g2144g14743g1913g4735g1082g712g3344g8596g8703g1114g2712g7503g7206g19492g1973g14743g1913g4735g2090g10720“g21761g4735”g11444g7206g19492g1130g
36、726 0.8 0.5 10.8 0.4t T s= =+ g7085g2102g709 g7083g709g16878g11109g4480g4660g2090g1663g17820g11109g3434g7206g11444g1495g12331g18431g1130yg712g6275g3416g14743g1913g4735g1082g11444g1405g13726g2144Og11444g17421g12267g1130Yg712g4018g3374g6256g12138: g11105g2064g1413g1955g13099g2591g5575: 2 3Y L Ly L+= =
37、 g5507g11109g4480g2625g1082g1663g17820g7206g712g3416g4735g1082g2090g10720g11444g7472g3927g17421g12267g1130:g712Y1=3 2L =12cm g5507g11109g4480g2625g1083g1663g17820g7206g712g3416g4735g1082g2090g10720g11444g7472g3927g17421g12267g1130: Y2=30.4 9.60.5 2L cm = g20750g1218g10399g10812g2552g13881g12682g7806 g126424g20139g948g19593g20139g949 g6256g1301g14743g1913g4735g1082g7481g11109g4480g6275g2144g11444g2410g19492g11444g19375g5334g1130: 1 2 21.6l Y Y cm= + = g7085g2102g709
