（2013?长春二模）如图所示，曲线Ⅰ是一颗绕地球做圆周运动卫星轨道的示意图，其半径为R；曲线Ⅱ是一颗绕
2013\u5e74\u5409\u6797\u7701\u957f\u6625\u5e02\u9ad8\u4e2d\u4e00\u6a21\u7269\u7406\u8003\u8bd5\u5377\u7b54\u68482013\u5e74\u957f\u6625\u5e02\u9ad8\u4e2d\u6bd5\u4e1a\u73ed\u7b2c\u4e00\u6b21\u8c03\u7814\u6d4b\u8bd5
\u7269\u7406
\u8003\u751f\u987b\u77e5\uff1a
1\uff0e\u672c\u8bd5\u5377\u5206\u8bd5\u9898\u5377\u548c\u7b54\u9898\uff0c\u6ee1\u5206100\u5206\uff0c\u8003\u8bd5\u65f6\u95f490\u5206\u949f\u3002
2\uff0e\u7b54\u9898\u524d\uff0c\u5728\u7b54\u9898\u5bc6\u5c01\u533a\u5185\u586b\u5199\u59d3\u540d\u3002
3\uff0e\u6240\u6709\u7b54\u6848\u5fc5\u987b\u5199\u5728\u7b54\u9898\u4e0a\uff0c\u5199\u5728\u8bd5\u5377\u4e0a\u65e0\u6548\u3002
4\uff0e\u8003\u8bd5\u7ed3\u675f\uff0c\u53ea\u9700\u4e0a\u4ea4\u7b54\u9898\u3002
\u7b2c\u2160\u5377\uff08\u9009\u62e9\u9898\uff0c\u517148\u5206\uff09\u4e00\u3001\u9009\u62e9\u9898\uff08\u672c\u5927\u9898\u5305\u62ec12\u5c0f\u9898\uff0c\u6bcf\u5c0f\u98984\u5206\uff0c\u517148\u5206\u3002\u5728\u6bcf\u5c0f\u9898\u7ed9\u51fa\u7684\u56db\u4e2a\u9009\u9879\u4e2d\uff0c\u6709\u7684\u5c0f\u9898\u53ea\u6709\u4e00\u4e2a\u9009\u9879\u6b63\u786e\uff0c\u6709\u7684\u5c0f\u9898\u6709\u591a\u4e2a\u9009\u9879\u6b63\u786e\u3002\u5168\u90e8\u9009\u5bf9\u7684\u5f974\u5206\uff0c\u9009\u5bf9\u4f46\u4e0d\u5168\u7684\u5f972\u5206\uff0c\u6709\u9009\u9519\u6216\u4e0d\u7b54\u7684\u5f970\u5206\uff091\uff0e
A\uff0e\u5f53\u7269\u4f53\u6ca1\u6709\u53d7\u5230\u5916\u529b\u4f5c\u7528\u65f6\uff0c\u624d\u6709\u60ef\u6027\uff0c\u800c\u7269\u4f53\u53d7\u5230\u5916\u529b\u4f5c\u7528\u65f6\uff0c\u5c31\u6ca1\u6709\u4e86\u60ef\u6027
B\uff0e\u7269\u4f53\u5728\u7c97\u7cd9\u7684\u5e73\u9762\u4e0a\u51cf\u901f\u6ed1\u884c\uff0c\u521d\u901f\u5ea6\u8d8a\u5927\uff0c\u6ed1\u884c\u7684\u65f6\u95f4\u8d8a\u957f\uff0c\u8bf4\u660e\u60ef\u6027\u7684\u5927\u5c0f\u4e0e\u901f\u5ea6\u6709\u5173
C\uff0e\u5f53\u53c2\u8003\u5e73\u9762\u9009\u53d6\u4e0d\u540c\u65f6\uff0c\u91cd\u529b\u52bf\u80fd\u548c\u7535\u52bf\u80fd\u7684\u503c\u53ef\u80fd\u51fa\u73b0\u4e3a\u8d1f\u503c\uff0c\u4f46\u5f39\u6027\u52bf\u80fd\u4e0d\u80fd\u4e3a\u8d1f\u503c
D\uff0e\u5f53\u4e00\u4e2a\u7cfb\u7edf\u9664\u53d7\u91cd\u529b\u4e0e\u5f39\u7c27\u7684\u5f39\u529b\u4f5c\u7528\u5916\uff0c\u8fd8\u53d7\u5176\u5b83\u529b\u7684\u4f5c\u7528\uff0c\u7cfb\u7edf\u7684\u673a\u68b0\u80fd\u53ef\u80fd\u5b88\u6052
2\uff0e
A\uff0e\u8d28\u70b9\u4e00\u76f4\u5411x\u8f74\u6b63\u65b9\u5411\u8fd0\u52a8
B\uff0e\u8d28\u70b9\u505a\u5300\u53d8\u901f\u76f4\u7ebf\u8fd0\u52a8
C\uff0e\u8d28\u70b9\u5728\u7b2c2s\u5185\u7684\u5e73\u5747\u901f\u5ea6\u7684\u5927\u5c0f\u4e3a3m/s
D\uff0e\u8d28\u70b9\u57282s\u5185\u7684\u4f4d\u79fb\u4e3a\u96f6
3\uff0e
A\uff0e\u78c1\u5934\u7684\u4f4d\u7f6e\u76f8\u540c\u65f6\uff0c7200r/min\u7684\u786c\u76d8\u8bfb\u5199\u6570
\u636e\u66f4\u5feb
B\uff0e\u5bf9\u4e8e\u67d0\u79cd\u786c\u76d8\uff0c\u78c1\u5934\u79bb\u76d8\u9762\u4e2d\u5fc3\u8ddd\u79bb\u8d8a\u8fdc\uff0c\u78c1\u5934\u7ecf\u8fc7\u4e00\u4e2a\u6247\u533a\u6240\u7528\u7684\u65f6\u95f4\u8d8a\u957f
C\uff0e\u4e0d\u7ba1\u78c1\u5934\u4f4d\u4e8e\u4f55\u5904\uff0c5400r/min\u7684\u786c\u76d8\u78c1\u5934\u7ecf\u8fc7\u4e00\u4e2a\u6247\u533a\u6240\u7528\u65f6\u95f4\u90fd\u76f8\u7b49
D\uff0e5400r/min\u4e0e7200r/min\u7684\u786c\u76d8\u76d8\u9762\u8fb9\u7f18\u7684\u67d0\u70b9\u7684\u5411\u5fc3\u52a0\u901f\u5ea6\u7684\u5927\u5c0f\u4e4b\u6bd4\u4e3a3\ufe304
4\uff0eF\u7684\uff0c1\u201d\u3001\u201c3\u201d\u4e24\u6728\u5757\u7684\u63a8\u529b\u548c
\u62c9\u529b\u4e0e\u6c34\u5e73\u65b9\u5411\u7684\u5939\u89d2\u76f8\u540c\uff0c\u8fd9\u65f6\u4e09\u4e2a\u6728\u5757\u90fd\u4fdd\u6301\u9759\u6b62\u3002\u6bd4\u8f83\u5b83\u4eec\u548c\u6c34\u5e73\u9762\u95f4\u7684\u5f39\u529b
\u5927\u5c0fFN1\u3001FN2\u3001FN3\u548c\u6469\u64e6\u529b\u5927\u5c0f\uff0c\u4e0b\u5217\u8bf4\u6cd5\u4e2d\u6b63
A\uff0eF
B\uff0eFN1\uff1dFN2\uff1dFN3\uff0cFf1\uff1dFf2\uff1dFf3
C\uff0eFN1\uff1eFN2\uff1eFN3\uff0cFf1\uff1dFf3\uff1cFf2
D\uff0eFN1\uff1eFN2\uff1eFN3\uff0cFf1\uff1dFf2\uff1dFf3
5\uff0e\u7269\u5757A\u3001B
A\uff0e\u5f39\u7c27\u7684\u539f\u957f\u4e3a
B\uff0e\u4e24\u79cd\u60c5\u51b5\u4e0b\u7a33\u5b9a\u65f6\u5f39\u7c27\u7684\u5f62\u53d8\u91cf\u76f8\u7b49
C\uff0e\u4e24\u79cd\u60c5\u51b5\u4e0b\u7a33\u5b9a\u65f6\u4e24\u7269\u5757\u7684\u52a0\u901f\u5ea6\u4e0d\u76f8\u7b49
D\uff0e\u5f39\u7c27\u7684\u52b2\u5ea6\u7cfb\u6570\u4e3a
6\uff0e\u5929\u5bab\u4e00\u53f7\u5728\u8fd0\u884c\u8fc7\u7a0b\u4e2d\uff0c\u7531\u4e8e\u5927\u6c14\u963b\u529b\u5f71\u54cd\uff0c\u8f68\u9053\u9ad8\u5ea6\u4f1a\u4e0d\u65ad\u8870\u51cf\u3002\u6708\u65e5\u65f6\u5206\uff0c\u795e\u821f\u516b\u53f7\u98de\u8239\u4e0e\u5929\u5bab\u4e00\u53f7\u76ee\u6807\u98de\u884c\u5668\u6210\u529f\u5206\u79bb18\u65e519\u65f622\u5206\uff0c\u5929\u5bab\u4e00\u53f7\u6210\u529f\u5b9e\u65bd\u5347\u8f68\u63a7\u5236\uff0c\u8f68\u9053\u9ad8\u5ea6\u7531\u62ac\u5347\u81f3\uff0c\u5176\u8f68\u9053\u9ad8\u5ea6343km\u7684\u4ea4\u4f1a\u5bf9\u63a5
A\uff0e\u5929\u5bab\u4e00\u53f7\u7684\u8fd0\u884c\u901f\u7387\u4f1a\u7f13\u6162\u51cf\u5c0f
B\uff0e\u5929\u5bab\u4e00\u53f7\u7684\u8fd0\u884c\u901f\u5ea6\u59cb\u7ec8\u5927\u4e8e\u7b2c\u4e00\u5b87\u5b99\u901f\u5ea6
C\uff0e\u5929\u5bab\u4e00\u53f7\u7684\u673a\u68b0\u80fd\u4e0d\u65ad\u51cf\u5c0f
D\uff0e\u5929\u5bab\u4e00\u53f7\u7684\u8fd0\u884c\u5468\u671f\u4f1a\u7f13\u6162\u589e\u5927
7\uff0e\u5982\u56fe\u6240\u793a\u7535\u8def\u4e2d\uff0c\u7535\u6e90\u5185\u963b\u4e0d\u53ef\u5ffd\u7565\uff0c\u3001\u4e24\u706f\u5747\u6b63\u5e38\u53d1\u5149\uff0cR1R\u4e3a\u4e00\u6ed1\u52a8\u53d8\u963b\u5668\uff0cP\u4e3a\u6ed1\u52a8\u7247\uff0c\u82e5\u5c06\u6ed1\u52a8\u7247\u5411\u4e0b\u6ed1\u52a8\uff0c\u5219g
A\uff0e\u706f\u53d8\u4eaeB\uff0e\u706f\u53d8\u6697
C\uff0eR1\u4e0a\u6d88\u8017\u529f\u7387\u53d8\u5927
D\uff0e\u603b\u7535\u6d41\u53d8\u5c0f
8\uff0ea\u3001b\u3001c\u548cd\uff0c\u5219M\u70b9\u7684\u78c1\u611f\u5e94\u5f3a\u5ea6\u7684\u65b9\u5411\u53ef\u80fd\u4e3a\u56fe\u4e2d\u7684
A\uff0ea\u65b9\u5411
B\uff0eb\u65b9\u5411
C\uff0ec\u65b9\u5411
D\uff0ed\u65b9\u5411
9\uff0e
A\uff0eR1\u4e2d\u7684\u7535\u6d41\u5c0f\u4e8eR2\u4e2d\u7684\u7535\u6d41
B\uff0eR1\u4e2d\u7684\u7535\u6d41\u7b49\u4e8eR2\u4e2d\u7684\u7535\u6d41
C\uff0eR1\u4e2d\u81ea\u7531\u7535\u8377\u5b9a\u5411\u79fb\u52a8\u7684\u901f\u7387\u5927\u4e8eR2\u4e2d\u81ea\u7531
\u7535\u8377\u5b9a\u5411\u79fb\u52a8\u7684\u901f\u7387
D\uff0eR1\u4e2d\u81ea\u7531\u7535\u8377\u5b9a\u5411\u79fb\u52a8\u7684\u901f\u7387\u5c0f\u4e8eR2\u4e2d\u81ea\u7531
\u7535\u8377\u5b9a\u5411\u79fb\u52a8\u7684\u901f\u7387
10\uff0eUXX\u2032=2V\uff0c\u540c\u65f6\u5728YY\u2032\u7535\u6781\u4e0a\u52a0\u4e0a\u6052\u5b9a\u7684\u7535\u538bUYY\u2032=\uff0d1V\u65f6\uff0c\u8367\u5149\u5c4f\u4e0a\u5149\u70b9\u7684\u5750\u6807\u4e3a\uff084\uff0c1\uff09UXX\u2032=1V\uff0c\u540c\u65f6\u5728YY\u2032\u7535\u6781\u4e0a\u52a0\u4e0a\u6052\u5b9a\u7684\u7535\u538bUYY\u2032=2V\u65f6\uff0c\u8367\u5149\u5c4f\u4e0a\u5149\u70b9\u7684\u5750\u6807\u4e3a
A\uff0e\uff082\uff0c\uff0d2\uff09
B\uff0e\uff084\uff0c\uff0d2\uff09
C\uff0e\uff082\uff0c2\uff09
D\uff0e\uff084\uff0c2\uff09
11\uff0e\u03b1=53\u00b0\u548c\u03b2=37\u00b0\uff0c\u4ee5\u6700\u4f4e\u70b9C\u6240\u5728\u7684\u6c34\u5e73\u9762\u4e3a\u91cd\u529b\u52bf\u80fd\u7684\u53c2\u8003\u5e73\u9762\uff0c\u5219\uff08\uff1b\uff09
A\uff0eA\u3001B\u4e24\u7403\u6240\u53d7\u652f\u6301\u529b\u7684\u5927\u5c0f\u4e4b\u6bd4\u4e3a4\ufe303
B\uff0eA\u3001B\u4e24\u7403\u8fd0\u52a8\u7684\u5468\u671f\u4e4b\u6bd4\u4e3a4\ufe303
C\uff0eA\u3001B\u4e24\u7403\u7684\u52a8\u80fd\u4e4b\u6bd4\u4e3a16\ufe309
D\uff0eA\u3001B\u4e24\u7403\u7684\u673a\u68b0\u80fd\u4e4b\u6bd4\u4e3a112\ufe3051
12\uff0e\uff0c\u5f0f\u4e2dR\u4e3a\u7403\u58f3\u7684\u534a\u5f84\uff0cr\u4e3a\u67d0\u70b9\u5230\u7403\u58f3\u7403\u5fc3\u7684\u8ddd\u79bb\uff0cQ\u4e3a\u7403\u58f3\u6240\u5e26\u7684\u7535\u8377\u91cf\uff0ck\u4e3a\u9759\u7535\u529b\u5e38\u91cf\u3002\u5728\u771f\u7a7a\u4e2d\u6709\u4e00\u534a\u5f84\u4e3aR\u3001\u7535\u8377\u91cf\u4e3a+Q\u7684\u5747\u5300\u5e26\u7535\u7403\u58f3\uff0c\u7403\u5fc3\u4f4d\u7f6eO\u56fa\u5b9a\uff0cP\u4e3a\u7403\u58f3\u5916\u4e00\u70b9\uff0cM\u4e3a\u7403\u58f3\u5185\u4e00\u70b9\uff0c\u5982\u56fe\u6240\u793a\uff0c\u4ee5\u65e0\u7a77\u8fdc\u4e3a\u7535\u52bf\u96f6\u70b9\uff0c\u5173\u4e8eP\u3001M\u4e24\u70b9\u7684\u7535\u573a\u5f3a\u5ea6\u548c\u7535\u52bf\uff0c\u4e0b\u5217\u8bf4\u6cd5\u4e2d\u6b63\u786e\u7684\u662f
A\uff0e\u82e5Q\u4e0d\u53d8\uff0cP\u70b9\u7684\u4f4d\u7f6e\u4e5f\u4e0d\u53d8\uff0c\u800c\u4ee4R\u53d8\u5c0f\uff0c\u5219P\u70b9\u7684\u573a\u5f3a\u4e0d\u53d8
B\uff0e\u82e5Q\u4e0d\u53d8\uff0cP\u70b9\u7684\u4f4d\u7f6e\u4e5f\u4e0d\u53d8\uff0c\u800c\u4ee4R\u53d8\u5c0f\uff0c\u5219P\u70b9\u7684\u7535\u52bf\u5347\u9ad8
C\uff0e\u82e5Q\u4e0d\u53d8\uff0cM\u70b9\u7684\u4f4d\u7f6e\u4e5f\u4e0d\u53d8\uff0c\u800c\u4ee4R\u53d8\u5c0f\uff08M\u70b9\u4ecd\u5728\u58f3\u5185\uff09\uff0c\u5219M\u70b9\u7684\u7535\u52bf\u5347\u9ad8
D\uff0e\u82e5Q\u4e0d\u53d8\uff0cM\u70b9\u7684\u4f4d\u7f6e\u4e5f\u4e0d\u53d8\uff0c\u800c\u4ee4R\u53d8\u5c0f\uff08M\u70b9\u4ecd\u5728\u58f3\u5185\uff09\uff0c\u5219M\u70b9\u7684\u573a\u5f3a\u4e0d\u53d8
\u7b2c\u2161\u5377 \uff08\u975e\u9009\u62e9\u9898\u517152\u5206\uff09
\u4e8c\u3001\u5b9e\u9a8c\u9898\u672c\u9898\u51712\u5c0f\u9898\uff0c\u517112\u5206\u3002\u628a\u7b54\u6848\u586b\u5728\u9898\u4e2d\u7684\u6a2a\u7ebf\u4e0a
13.\uff084\u5206\uff09\u8bfb\u51fa\u6e38\u6807\u5361\u5c3a\u548c\u87ba\u65cb\u6d4b\u5fae\u5668\u7684\u8bfb\u6570\uff1a
\uff081\uff09\u56fe1\u7684\u8bfb\u6570\u4e3a________cm\uff082\uff09\u56fe2\u8bfb\u6570\u4e3a_________m\u3002
14\uff0e\uff088\u5206\uff09\u5229\u7528\u5982\u56fe\u6240\u793a\u7535\u8def\u6d4b\u91cf\u4e00\u91cf\u7a0b\u4e3a300 mV\u7684\u7535\u538b\u8868\u7684\u5185\u963bRVRV\u7ea6\u4e3a300\u03a9\u5b9e\u9a8c\u6b65\u9aa4\u5982\u4e0b\uff1a
\u2460\u6309\u7535\u8def\u56fe\u6b63\u786e\u8fde\u63a5\u597d\u7535\u8def\uff0c\u628a\u6ed1\u52a8\u53d8\u963b\u5668R\u7684\u6ed1\u7247P\u6ed1\u5230a\u7aef\uff0c\u95ed\u5408\u5f00\u5173S2\uff0c\u5e76\u5c06\u7535\u963b\u7bb1R0\u7684\u963b\u503c\u8c03\u5230\u8f83\u5927\uff1b
\u2461\u95ed\u5408\u5f00\u5173S1\uff0c\u8c03\u8282\u6ed1\u52a8\u53d8\u963b\u5668\u6ed1\u7247\u7684\u4f4d\u7f6e\uff0c\u4f7f\u7535\u538b\u8868\u7684\u6307\u9488\u6307\u5230\u6ee1\u523b\u5ea6\uff1b
\u2462\u4fdd\u6301\u5f00\u5173S1\u95ed\u5408\u548c\u6ed1\u52a8\u53d8\u963b\u5668\u6ed1\u7247P\u7684\u4f4d\u7f6e\u4e0d\u53d8\uff0c\u65ad\u5f00\u5f00\u5173S2\uff0c\u8c03\u6574\u7535\u963b\u7bb1R0\u7684\u963b\u503c\u5927\u5c0f\uff0c\u4f7f\u7535\u538b\u8868\u7684\u6307\u9488\u6307\u5230\u6ee1\u523b\u5ea6\u7684\u4e00\u534a\uff1b\u8bfb\u51fa\u6b64\u65f6\u7535\u963b\u7bb1R0\u7684\u963b\u503c\uff0c\u5373\u4e3a\u7535\u538b\u8868\u5185\u963bRV\u7684\u6d4b\u91cf\u503c\u5b9e\u9a8c\u6240\u63d0\u4f9b\u7684\u5668\u6750\u9664\u5f85\u6d4b\u7535\u538b\u8868\u3001\u7535\u963b\u7bb1\uff08\u6700\u5927\u963b\u503c9999\u03a9)\u3001\u7535\u6c60\uff08\u7535\u52a8\u52bf\u7ea615 V\uff0c\u5185\u963b\u53ef\u5ffd\u7565\u4e0d\u8ba1\uff09\u3001\u5bfc\u7ebf\u548c\u5f00\u5173\u4e4b\u5916\uff0c\u8fd8\u6709\u5982\u4e0b\u53ef\u4f9b\u9009\u62e9\u7684\u5b9e\u9a8c\u5668\u6750\uff1aA\uff0e\u6ed1\u52a8\u53d8\u963b\u5668\uff08\u6700\u5927\u963b\u503c150\u03a9B\uff0e\u6ed1\u52a8\u53d8\u963b\u5668\uff08\u6700\u5927\u963b\u503c10\u03a9\uff09C\uff0e\u5b9a\u503c\u7535\u963b\uff08\u963b\u503c\u7ea620\u03a9D\uff0e\u5b9a\u503c\u7535\u963b\uff08\u963b\u503c\u7ea6200\u03a9
\u6839\u636e\u4ee5\u4e0a\u8bbe\u8ba1\u7684\u5b9e\u9a8c\u65b9\u6cd5\uff0c\u56de\u7b54\u4e0b\u5217\u95ee\u9898\uff1a
\u5bf9\u4e8e\u4e0a\u8ff0\u6d4b\u91cf\u65b9\u6cd5\uff0c\u4ece\u5b9e\u9a8c\u539f\u7406\u5206\u6790\u53ef\u77e5\uff0c\u5728\u6d4b\u91cf\u65e0\u8bef\u7684\u60c5\u51b5\u4e0b\uff0c\u5b9e\u9645\u6d4b\u51fa\u7684\u7535\u538b\u8868\u5185\u963b\u7684\u6d4b\u91cf\u503cR\u6d4b \u771f\u5b9e\u503cRV\u586b\u5927\u4e8e\u3001\u5c0f\u4e8e\u6216\u7b49\u4e8e\uff09
\u4e3a\u4e86\u4f7f\u6d4b\u91cf\u6bd4\u8f83\u7cbe\u786e\uff0c\u4ece\u53ef\u4f9b\u9009\u62e9\u7684\u5b9e\u9a8c\u5668\u6750\u4e2d\uff0c\u6ed1\u52a8\u53d8\u963b\u5668R\u5e94\u9009\u7528 \u5b9a\u503c\u7535\u963bR'\u5e94\u9009\u7528 \uff08\u586b\u53f7\uff09
\uff083\uff09\u5728\u5176\u5b83\u5143\u4ef6\u4e0d\u53d8\u7684\u60c5\u51b5\u4e0b\u4e3a\u4f7f\u6d4b\u91cf\u66f4\u51c6\u786e,\u53ef\u6362\u7528\u4e00\u7535\u52a8\u52bf\u66f4________\u7684\u7535\u6c60\u5185\u963b\u53ef\u5ffd\u7565\u586b\u5927\u6216\u5c0f\u4e09\u3001\u8ba1\u7b97\u9898\uff1a\uff08\u672c\u9898\u5171\u5c0f\u9898\uff0c\u517140\u5206\u3002\u89e3\u7b54\u5e94\u5199\u51fa\u5fc5\u8981\u7684\u6587\u5b57\u8bf4\u660e\u3001\u65b9\u7a0b\u5f0f\u548c\u91cd\u8981\u6f14\u7b97\u6b65\u9aa4\u3002\u53ea\u5199\u51fa\u6700\u540e\u7b54\u6848\u7684\u4e0d\u80fd\u5f97\u5206\u3002\u6709\u6570\u503c\u8ba1\u7b97\u7684\u9898\uff0c\u7b54\u6848\u4e2d\u5fc5\u987b\u660e\u786e\u5199\u51fa\u6570\u503c\u548c\u5355\u4f4d\u3002\uff09
15\uff0e\uff08\u5206\uff09v1=5m/s\u5f00\u59cb\u5411\u53f3\u505a\u5e73\u629b\u8fd0\u52a8\uff0c\u540c\u65f6B\u4ee5v2=3m/s\u7684\u521d\u901f\u5ea6\u5f00\u59cb\u5411\u53f3\u505a\u5300\u52a0\u901f\u76f4\u7ebf\u8fd0\u52a8\uff0cA\u6070\u597d\u80fd\u51fb\u4e2dB\uff0c\u6c42B\u8fd0\u52a8\u7684\u52a0\u901f\u5ea6a\u7684\u5927\u5c0f\u3002\uff08g=10m/s2\uff09
16\uff0e\uff081\u5206\uff09\u5982\u56fe\u7532\u6240\u793a\uff0c\u4e00\u8db3\u591f\u957f\u3001\u4e0e\u6c34\u5e73\u9762\u5939\u89d2\u03b8=53\u00b0\u7684\u503e\u659c\u8f68\u9053\u4e0e\u7ad6\u76f4\u9762\u5185\u7684\u5149\u6ed1\u5706\u8f68\u9053\u76f8\u63a5\uff0c\u5706\u8f68\u9053\u7684\u534a\u5f84\u4e3aR\uff0c\u5176\u6700\u4f4e\u70b9\u4e3aA\uff0c\u6700\u9ad8\u70b9\u4e3aB\u3002\u53ef\u89c6\u4e3a\u8d28\u70b9\u7684\u7269\u5757\u4e0e\u659c\u8f68\u95f4\u6709\u6469\u64e6\uff0c\u7269\u5757\u4ece\u659c\u8f68\u4e0a\u67d0\u5904\u7531\u9759\u6b62\u91ca\u653e\uff0c\u5230\u8fbeB\u70b9\u65f6\u4e0e\u8f68\u9053\u95f4\u538b\u529b\u7684\u5927\u5c0fF\u4e0e\u91ca\u653e\u7684\u4f4d\u7f6e\u8ddd\u6700\u4f4e\u70b9\u7684\u9ad8\u5ea6h\u7684\u5173\u7cfb\u56fe\u8c61\u5982\u56fe\u4e59\u6240\u793a\uff0c\u4e0d\u8ba1\u5c0f\u7403\u901a\u8fc7A\u70b9\u65f6\u7684\u80fd\u91cf\u635f\u5931\uff0c\u91cd\u529b\u52a0\u901f\u5ea6g=10m/s2\uff0c\u6c42\uff1a
\uff081\uff09\u7269\u5757\u4e0e\u659c\u8f68\u95f4\u7684\u52a8\u6469\u64e6\u56e0\u6570\u03bc\uff1b\uff082\uff09\u7269\u5757\u7684\u8d28\u91cfm\u3002
17\uff0e\uff081\u5206\uff09m\uff0c\u95f4\u8ddd\u8db3\u591f\u5927\u3002\u5728\u677f\u7684\u53f3\u4fa7\u8fd8\u5b58\u5728\u7740\u53e6\u4e00\u5706\u5f62\u533a\u57df\u7684\u5300\u5f3a\u78c1\u573a\uff0c\u78c1\u573a\u7684\u65b9\u5411\u4e3a\u5782\u76f4\u4e8e\u7eb8\u9762\u5411\u5916\uff0c\u5706\u5f62\u533a\u57df\u7684\u5706\u5fc3O\u4f4d\u4e8e\u5e73\u884c\u91d1\u5c5e\u6781\u677f\u7684\u4e2d\u7ebf\u4e0a\uff0c\u5706\u5f62\u533a\u57df\u7684\u534a\u5f84R=m\u3002\u6709\u4e00\u5e26\u6b63\u7535\u7684\u7c92\u5b50\u4ee5\u67d0\u901f\u5ea6\u6cbf\u6781\u677f\u7684\u4e2d\u7ebf\u6c34\u5e73\u5411\u53f3\u98de\u5165\u6781\u677f\u540e\u6070\u597d\u505a\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\uff0c\u7136\u540e\u8fdb\u5165\u5706\u5f62\u78c1\u573a\u533a\u57df\uff0c\u98de\u51fa\u5706\u5f62\u78c1\u573a\u533a\u57df\u540e\u901f\u5ea6\u65b9\u5411\u504f\u8f6c\u4e8660\u00b0\uff0c\u4e0d\u8ba1\u7c92\u5b50\u7684\u91cd\u529b\uff0c\u7c92\u5b50\u7684\u6bd4\u8377\u3002
\uff081\uff09\u6c42\u5706\u5f62\u533a\u57df\u78c1\u573a\u7684\u78c1\u611f\u5e94\u5f3a\u5ea6B2\u7684\u5927\u5c0f
\uff082\uff09\u5728\u5176\u5b83\u6761\u4ef6\u90fd\u4e0d\u53d8\u7684\u60c5\u51b5\u4e0b\uff0c\u5c06\u6781\u677f\u95f4\u7684\u78c1\u573aB1\u64a4\u53bb\uff0c\u4e3a\u4f7f\u7c92\u5b50\u98de\u51fa\u6781\u677f\u540e\u4e0d\u80fd\u8fdb\u5165\u5706\u5f62\u533a\u57df\u7684\u78c1\u573a\uff0c\u6c42\u5706\u5f62\u533a\u57df\u7684\u5706\u5fc3O\u79bb\u6781\u677f\u53f3\u8fb9\u7f18\u7684\u6c34\u5e73\u8ddd\u79bbd\u5e94\u6ee1\u8db3\u7684\u6761\u4ef6\u3002
2013\u5e74\u957f\u6625\u5e02\u9ad8\u4e2d\u6bd5\u4e1a\u73ed\u7b2c\u4e00\u6b21\u8c03\u7814\u6d4b\u8bd5
\u7269\u7406\u8bd5\u9898\u53c2\u8003\u7b54\u6848\u53ca\u8bc4\u5206\u6807\u51c6
\u4e00\u3001\u9009\u62e9\u9898\uff08\u672c\u5927\u9898\u5305\u62ec12\u5c0f\u9898\uff0c\u6bcf\u5c0f\u98984\u5206\uff0c\u517148\u5206\uff09
1\uff0e\u3010\u7b54 \u6848\u3011D
\u3010\u547d\u9898\u610f\u56fe\u3011\u8003\u67e5\u5b66\u751f\u5bf9\u60ef\u6027\u3001\u52bf\u80fd\u7684\u76f8\u5bf9\u6027\u7684\u7406\u89e3\u53ca\u673a\u68b0\u80fd\u5b88\u6052\u5b9a\u5f8b\u7684\u6761\u4ef6\u3002
\u3010\u89e3 \u6790\u3011 \u60ef\u6027\u5927\u5c0f\u53d6\u51b3\u4e8e\u8d28\u91cf\u4e0e\u901f\u5ea6\u4e0e\u5916\u529b\u65e0\u5173\uff0c\u6240\u4ee5A\u3001B\u9009\u9879\u9519\u8bef\uff0c\u52bf\u80fd\u5177\u6709\u76f8\u5bf9\u6027\u6240\u4ee5C\u9009\u9879\u9519\u8bef\uff0c\u7531\u673a\u68b0\u80fd\u5b88\u6052\u5b9a\u5f8b\u7684\u6761\u4ef6\u53ef\u77e5D\u9009\u9879\u6b63\u786e\u3002
2\uff0e\u3010\u7b54 \u6848\u3011D
\u3010\u547d\u9898\u610f\u56fe\u3011\u8003\u67e5\u5b66\u751f\u5bf9\u4f4d\u79fb\u3001\u5e73\u5747\u901f\u5ea6\u53ca\u4f4d\u79fb\u4e0e\u4f4d\u7f6e\u5750\u6807\u53d8\u5316\u7684\u5173\u7cfb\u7684\u7406\u89e3\u3002
\u3010\u89e3 \u6790\u3011\u5229\u7528\u4f4d\u7f6e\u5750\u6807\u4e0e\u65f6\u95f4\u7684\u5173\u7cfb\u5f97\u51fa\u5404\u4e2a\u65f6\u523b\u7684\u4f4d\u7f6e\u5750\u6807\u540e\u518d\u5224\u65ad\u3002\u7531\u5300\u53d8\u901f\u76f4\u7ebf\u8fd0\u52a8\u7684\u4f4d\u79fb\u4e0e\u65f6\u95f4\u7684\u5173\u7cfb\u5f0f\u53ef\u77e5A\u3001B\u9009\u9879\u9519\u8bef\uff0c\u6839\u636e\u5e73\u5747\u901f\u5ea6\u7684\u5b9a\u4e49\u5f0f\u7ed3\u5408\u9898\u76ee\u6240\u7ed9\u5173\u7cfb\u5f0f\u53ef\u77e5\u8d28\u70b9\u5728\u7b2c2s\u5185\u7684\u5e73\u5747\u901f\u5ea6\u7684\u5927\u5c0f\u4e0d\u662f3m/s\u3002
3\uff0e\u3010\u7b54 \u6848\u3011AC
\u3010\u547d\u9898\u610f\u56fe\u3011\u8003\u67e5\u5300\u901f\u5706\u5468\u8fd0\u52a8\u7ebf\u901f\u5ea6\u3001\u89d2\u901f\u5ea6\u3001\u5411\u5fc3\u52a0\u901f\u5ea6\u3001\u8f6c\u901f\u53ca\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u3002
\u3010\u89e3 \u6790\u3011\u6839\u636e \u53ef\u77e5\u8f6c\u901f\u5927\u7684\u8bfb\u5199\u901f\u5ea6\u5feb\uff0c\u6240\u4ee5A\u9009\u9879\u662f\u6b63\u786e\u7684\u3002\u6839\u636e\u53ef\u77e5B\u9009\u9879\u9519\uff0cC\u9009\u9879\u6b63\u786e\u3002\u6839\u636e\u53ef\u77e5D\u9009\u9879\u9519\u8bef\u3002
4\uff0e\u3010\u7b54 \u6848\u3011C
\u3010\u547d\u9898\u610f\u56fe\u3011\u8003\u67e5\u7269\u4f53\u7684\u53d7\u529b\u5206\u6790\u3001\u9759\u6469\u64e6\u529b\u53ca\u7269\u4f53\u5e73\u8861\u6761\u4ef6\u3002
\u3010\u89e3 \u6790\u3011\u7531\u9898\u610f\u53ef\u77e5\u4e09\u4e2a\u6728\u5757\u4e0e\u6c34\u5e73\u9762\u95f4\u7684\u5f39\u529b\u5927\u5c0f\u5206\u522b\u4e3a\u91cd\u529b\u52a0\u4e0a\u7ad6\u76f4\u5206\u91cf\u3001\u91cd\u529b\u3001\u91cd\u529b\u51cf\u53bb\u7ad6\u76f4\u5206\u91cf\uff1b\u9759\u6469\u64e6\u529b\u7684\u5927\u5c0f\u5206\u522b\u4e3a\u6c34\u5e73\u5206\u91cf\u3001\u3001\u6c34\u5e73\u5206\u91cf\uff0c\u6240\u4ee5\u7b54\u6848\u9009\u62e9C
5\uff0e\u3010\u7b54 \u6848\u3011D
\u3010\u547d\u9898\u610f\u56fe\u3011\u8003\u67e5\u725b\u987f\u7b2c\u4e8c\u5b9a\u5f8b\u3001\u80e1\u514b\u5b9a\u5f8b\u53ca\u89e3\u51b3\u8fde\u63a5\u4f53\u95ee\u9898\u7684\u65b9\u6cd5\u3002
\u3010\u89e3 \u6790\u3011\u7531\u9898\u610f\u53ef\u5f97\u4e24\u6b21\u7269\u4f53\u7684\u52a0\u901f\u5ea6\u5927\u5c0f\u76f8\u7b49\u4e3a \uff0c\u65b9\u5411\u6c34\u5e73\u5411\u53f3\uff0c\u6240\u4ee5C\u9009\u9879\u9519\u8bef\uff0c\u8bbe\u5f39\u7c27\u7684\u539f\u957f\u4e3a\uff0c\u5f39\u7c27\u7684\u52b2\u5ea6\u7cfb\u6570\u4e3a\uff0c\u5219\u6709 \u89e3\u5f97 \uff0c\u6240\u4ee5A\u3001B\u9009\u9879\u9519\u8bef\uff0cD\u9009\u9879\u6b63\u786e\u3002
6\uff0e\u3010\u7b54 \u6848\u3011C
\u3010\u547d\u9898\u610f\u56fe\u3011\u7ed3\u5408\u5929\u5bab\u4e00\u53f7\u4e0e\u795e\u821f\u4e5d\u53f7\u5bf9\u63a5\u60c5\u5883\uff0c\u8003\u67e5\u536b\u661f\u7ed5\u5730\u7403\u8fd0\u884c\u7684\u901f\u7387\u548c\u5468\u671f\u4e0e\u534a\u5f84\u7684\u5173\u7cfb\u53ca\u5bf9\u7b2c\u4e00\u5b87\u5b99\u901f\u5ea6\u548c\u80fd\u91cf\u7684\u8f6c\u6362\u548c\u5b88\u6052\u7684\u7406\u89e3\u3002
\u3010\u89e3 \u6790\u3011 \u5929\u5bab\u4e00\u53f7\u7531\u4e8e\u963b\u529b\u5f71\u54cd\u673a\u68b0\u80fd\u51cf\u5c11,\u504f\u79bb\u8f68\u9053\u505a\u5411\u5fc3\u8fd0\u52a8\uff0c\u534a\u5f84\u51cf\u5c0f\uff0c\u8fd0\u884c\u901f\u5ea6\u589e\u5927\u4f46\u5c0f\u4e8e\u7b2c\u4e00\u5b87\u5b99\u901f\u5ea6\uff0c\u5468\u671f\u51cf\u5c11\uff0c\u6240\u4ee5A\u3001B\u3001D\u9009\u9879\u9519\u8bef\uff0cC\u9009\u9879\u6b63\u786e\u3002
7\uff0e\u3010\u7b54 \u6848\u3011BC
\u3010\u547d\u9898\u610f\u56fe\u3011\u8003\u67e5\u95ed\u5408\u7535\u8def\u4e2d\u7269\u7406\u91cf\u968f\u5916\u7535\u963b\u53d8\u5316\u7684\u5173\u7cfb
\u3010\u89e3 \u6790\u3011\u7531\u95ed\u5408\u7535\u8def\u6b27\u59c6\u5b9a\u5f8b\u53ef\u5f97\uff0c\u6ed1\u7247\u5411\u4e0b\u6ed1\u52a8\uff0c\u7535\u963b\u51cf\u5c11\uff0c\u7535\u6d41\u589e\u5927\uff0c\u8def\u7aef\u7535\u538b\u51cf\u5c11,\u6240\u4ee5\u7b54\u6848\u9009B\u3001C
8\uff0e\u3010\u7b54 \u6848\u3011C
\u3010\u547d\u9898\u610f\u56fe\u3011\u8003\u67e5\u76f4\u7ebf\u7535\u6d41\u78c1\u573a\u65b9\u5411\u7684\u5b89\u57f9\u5b9a\u5219\u53ca\u78c1\u611f\u5e94\u5f3a\u5ea6\u7684\u77e2\u91cf\u6027\u3002
\u3010\u89e3 \u6790\u3011\u76f4\u7ebf\u7535\u6d41\u5468\u56f4\u7684\u78c1\u611f\u5e94\u5f3a\u5ea6\u968f\u7535\u6d41\u5f3a\u5ea6\u589e\u5927\u800c\u589e\u5927\uff0c\u968f\u8ddd\u76f4\u7ebf\u7535\u6d41\u7684\u8ddd\u79bb\u589e\u5927\u800c\u51cf\u5c0f\uff0c\u7ed3\u5408\u5e73\u884c\u56db\u8fb9\u5f62\u5b9a\u5219\uff0c\u53ef\u77e5C\u9009\u9879\u6b63\u786e\u3002
9\uff0e\u3010\u7b54 \u6848\u3011BD
\u3010\u547d\u9898\u610f\u56fe\u3011\u8003\u67e5\u7535\u963b\u5b9a\u5f8b\u3001\u6b27\u59c6\u5b9a\u5f8b\u53ca\u7535\u6d41\u7684\u5fae\u89c2\u8868\u8fbe\u5f0f
\u3010\u89e3 \u6790\u3011\u8bbe\u6b63\u65b9\u5f62\u8fb9\u957f\u4e3aL\u3001\u539a\u5ea6\u4e3ad\uff0c\u5219\uff0c\u5219\u76f8\u7b49\u3002B\u6b63\u786e\u3002\u7531\u5f97L\u5927\u7684v\u5c31\u5c0f\u3002D\u6b63\u786e\u3002
10\uff0e\u3010\u7b54 \u6848\u3011C
\u3010\u547d\u9898\u610f\u56fe\u3011\u8003\u67e5\u793a\u6ce2\u7ba1\u7684\u539f\u7406\u3001\u5e26\u7535\u7c92\u5b50\u5728\u7535\u573a\u4e2d\u504f\u8f6c\u7684\u89c4\u5f8b
\u3010\u89e3 \u6790\u3011 \u504f\u8f6c\u4f4d\u79fb\u4e0e\u7535\u538b\u6210\u6b63\u6bd4\uff0c\u6240\u4ee5\u7b54\u6848\u9009\u62e9C
11\uff0e\u3010\u7b54 \u6848\u3011AD
\u6eb6\u89e3\u5ea6\u66f2\u7ebf\u662f\u7528\u7eb5\u5750\u6807\u8868\u793a\u6eb6\u89e3\u5ea6\uff0c\u6a2a\u5750\u6807\u8868\u793a\u6e29\u5ea6\uff0c\u8868\u793a\u793a\u7269\u8d28\u7684\u6eb6\u89e3\u5ea6\u968f\u6e29\u5ea6\u53d8\u5316\u7684\u66f2\u7ebf\uff0c\u7269\u8d28\u7684\u6eb6\u89e3\u5ea6\u4e0e\u6e29\u5ea6\u662f\u4e00\u4e00\u5bf9\u6620\u7684\u5173\u7cfb\uff0e\uff081\uff09\u7531\u56fe\u53ef\u4ee5\u770b\u51fa\uff1a\u6a2a\u5750\u6807\u4e2d10\u2103\u7684\u5782\u7ebf\u4e0eKNO3\u7684\u6eb6\u89e3\u5ea6\u66f2\u7ebf\u7684\u4ea4\u70b9\u6240\u5bf9\u5e94\u7684\u7eb5\u5750\u6807\u663e\u793a\u7684\u6570\u503c\u4e3a20g\uff0c\u654510\u2103\u65f6\uff0cKNO3\u7684\u6eb6\u89e3\u5ea6\u7ea6\u4e3a20g\uff1b\u6545\u7b54\u6848\u4e3a\uff1a20\uff1b\uff082\uff09\u5c06\u5927\u591a\u6570\u7269\u8d28\u7684\u9971\u548c\u6eb6\u6db2\u8f6c\u5316\u4e3a\u4e0d\u9971\u548c\u6eb6\u6db2\u7684\u65b9\u6cd5\u6709\uff1a\u52a0\u6eb6\u5242\u3001\u5347\u9ad8\u6e29\u5ea6\uff0e\u64cd\u4f5c\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u52a0\u6eb6\u5242\uff08\u52a0\u6c34\uff09\uff1b\u6545\u7b54\u6848\u4e3a\uff1a\u52a0\u6eb6\u5242\uff1b \uff083\uff09\u7531\u56fe\u53ef\u4ee5\u5f97\u77e5\uff1a20\u2103\u65f6\uff0cKNO3\u7684\u6eb6\u89e3\u5ea6\u7ea630g\uff0c\u537320\u2103\u65f6\uff0c\u5728100g\u6c34\u4e2d\uff0c\u6700\u591a\u53ef\u6eb6\u89e330gKNO3\uff1b\u6b64\u65f6\u6eb6\u6db2\u7684\u8d28\u91cf\u6070\u597d\u4e3a\uff1a100g+30g=130g\uff1b\u6240\u4ee5\u5728130gKNO3\u7684\u9971\u548c\u6eb6\u6db2\u4e2d\u542b\u670930gKNO3\uff1b\u800c\u572810\u2103\u65f6\uff0cKNO3\u7684\u6eb6\u89e3\u5ea6\u7ea620g\uff0c\u537320\u2103\u65f6\uff0c\u5728100g\u6c34\u4e2d\uff0c\u6700\u591a\u53ef\u6eb6\u89e320gKNO3\uff0c\u5f5320\u2103\u65f6130gKNO3\u7684\u9971\u548c\u6eb6\u6db2\u964d\u6e29\u81f310\u2103\u65f6\uff0c100g\u6c34\u4e2d\uff0c\u6700\u591a\u53ef\u6eb6\u89e320gKNO3\uff0c\u5269\u4f59\u7684\u6eb6\u8d28\uff0830g-20g=10g\uff09\u5c31\u4f1a\u6790\u51fa\uff1b\u6545\u7b54\u6848\u4e3a\uff1a10\uff0e
A、根据开普勒第三定律得| a3 |
| T2 |
己知卫星在两轨道上运动的卫星的周期相等，所以椭圆轨道的长轴长度为2R，故A错误；
B、B点为椭圆轨道的远地点，速度比较小，v0表示做匀速圆周运动的速度，v0＞vB．故B错误；
C、根据牛顿第二定律得a=
| GM |
| r2 |
卫星在Ⅰ轨道距离地心的距离大于卫星在Ⅱ轨道A点距离地心的距离，所以a0＜aA，故C正确；
D、若OA=0.5R，则OB=1.5R，
人造卫星绕地球做匀速圆周运动，根据万有引力提供向心力，
| GMm |
| r2 |
| mv2 |
| r |
v=
绛旓細鏁匔姝ｇ‘锛汥銆佽嫢OA=0.5R锛屽垯OB=1.5R锛屼汉閫犲崼鏄熺粫鍦扮悆鍋氬寑閫熷渾鍛ㄨ繍鍔紝鏍规嵁涓囨湁寮曞姏鎻愪緵鍚戝績鍔涳紝GMm r2=mv2rv=GM r锛屽鏋滃崼鏄熶互OB涓鸿建閬撳崐寰勫仛鍖閫熷渾鍛ㄨ繍鍔紝v=GM r=2GM3R锛屽湪鈪¤建閬撲笂锛屽崼鏄熷湪B鐐硅鍑忛燂紝鍋氳繎蹇冭繍鍔紝 绛旓細鐓х浉鏈虹殑闀滃ご鍒╃敤鐨勬槸鐗╄窛澶т簬浜屽嶇劍璺濇椂鍑搁忛暅鐨勬垚鍍忚寰嬶紝鍗虫垚鍊掔珛缂╁皬鐨勫疄鍍忥紱搴曠墖鍒伴暅澶寸殑璺濈涓哄儚璺濆簲澶т簬f灏忎簬2f锛岀収鐩告満瑕佹媿鎽勮繙澶勬櫙鐗╂椂锛岄渶瑕佸澶х墿璺濓紝鍚屾椂鍑忓皬鍍忚窛锛庢墍浠ヨ鐓х浉鏈洪暅澶磋窛鏅墿鐨勮窛绂诲簲澧炲ぇ锛岀収鐩告満杩滅鏅墿锛屽澶ч暅澶翠笌浜轰箣闂寸殑璺濈锛岄暅澶村悜鍚庤皟锛屽噺灏忛暅澶村拰搴曠墖涔嬮棿鐨勮窛绂伙紟鏁呯瓟妗... 绛旓細锛1锛夋湁鐢ㄥ姛锛歐鏈夌敤=G鐗﹉=400N脳10m=4000J锛涗娇鐢ㄥ姩婊戣疆缁冲瓙鑷敱绔Щ鍔ㄧ殑璺濈鏄墿浣撶Щ鍔ㄨ窛绂荤殑2鍊嶏紝s=2h=2脳10m=20m锛涙墍鍋氭诲姛锛歐鎬=Fs=250N脳20m=5000J锛涒埓鍔ㄦ粦杞殑鏈烘鏁堢巼畏=W鏈夌敤W鎬幻100%=4000J5000J脳100%=80%锛2锛夋媺鍔涚殑鍔熺巼锛歅=W鎬籺=5000J20s=250W锛庣瓟锛氾紙1锛夊姩婊戣疆鐨勬満姊... 绛旓細閫熷害v鏈灏忕殑鏉′欢鏄細浜鸿烦涓婁箼鑸圭ǔ瀹氬悗涓よ埞鐨勯熷害鐩哥瓑锛屼互鐢茶埞鐨勫垵閫熷害鏂瑰悜涓烘鏂瑰悜锛屼互鐢茶埞鍜屼汉缁勬垚鐨勭郴缁熶负鐮旂┒瀵硅薄锛岀敱鍔ㄩ噺瀹堟亽瀹氬緥寰楋細锛坢+13m锛塿0=mv鑸+13mv锛屼互涔欒埞涓庝汉缁勬垚鐨勭郴缁熶负鐮旂┒瀵硅薄锛屼互浜虹殑閫熷害鏂瑰悜涓烘鏂瑰悜锛岀敱鍔ㄩ噺瀹堟亽瀹氬緥寰楋細-mv0+13mv=锛坢+13m锛塿鑸癸紝瑙ｅ緱锛歷=257v0... 绛旓細瀹氬肩數闃伙級鐨勭數鍘嬶紝婊戝姩鍙橀樆鍣ㄦ粦鐗嘝鍚戝彸绉诲姩杩囩▼涓紝鐢甸樆鍑忓皬锛屽垯鎬荤數闃诲噺灏忥紝鎵浠ユ荤數娴佸澶э紝鍗砨鐨勭ず鏁板澶э紝鎬荤數娴佸澶э紝鍒欏唴闃绘墍鍗犵數鍘嬪澶э紝骞惰仈閮ㄥ垎鐢靛帇鍑忓皬锛屽垯c鐨勭ず鏁板噺灏忥紝鏍规嵁娆у瀹氬緥鍙煡锛岄氳繃R鐨勭數娴佸噺灏忥紝鑰屾荤數娴佸澶э紝鎵浠ラ氳繃婊戝姩鍙橀樆鍣ㄧ殑鐢垫祦澧炲ぇ锛屽嵆a鐨勭ず鏁板澶э紝鏁匒姝ｇ‘锛庢晠閫夛細A ... 绛旓細鏀偣鍒板瀭瓒崇殑璺濈灏辨槸鍔涜噦Lb锛屽涓嬪浘鎵绀锛氾紙2锛夊脊绨ф祴鍔涜绔栫洿鍚戜笂鎷夋潬鏉嗕竴绔殑A鐐癸紝鏉犳潌骞宠 鏃跺脊绨ф祴鍔涜鐨勭ず鏁颁负Fa锛岃嫢鍦ˋ鐐规枩鍚戜笂鎷夋媺鍔涘姏鑷傚彉灏忥紝闃诲姏涓庨樆鍔涜噦涓嶅彉锛岀敱鏉犳潌骞宠 鏉′欢鍙煡锛屾潬鏉嗗钩琛℃椂锛屽姩鍔涜鍙樺ぇ锛屽嵆寮圭哀娴嬪姏璁＄殑绀烘暟涓篎b瑕佸彉澶э紝鍒橣a灏忎簬Fb锛庢晠绛旀涓猴細濡備笂鍥撅紱锛滐紟 绛旓細鈻矱p鈻硏鐢辨暟瀛︾煡璇嗗彲鐭p-x鍥捐薄鍒囩嚎鐨勬枩鐜囩瓑浜庘柍Ep鈻硏锛寈1澶勫垏绾挎枩鐜囦负闆讹紝鍒檟1澶勭數鍦哄己搴︿负闆讹紝鏁匒姝ｇ‘锛嶣銆佹牴鎹數鍔胯兘涓庣數鍔跨殑鍏崇郴锛欵p=q蠁锛屽洜绮掑瓙甯﹁礋鐢碉紝q锛0锛屽垯鐭ョ數鍔胯兘瓒婂ぇ锛岀矑瀛愭墍鍦ㄥ鐨勭數鍔胯秺浣庯紝鎵浠ユ湁锛毾1锛炏2锛炏3锛庢晠B姝ｇ‘锛嶤銆丏銆佺敱鍥剧湅鍑哄湪0锝瀤1娈靛浘璞″垏绾跨殑鏂滅巼涓嶆柇... 绛旓細3. [2013路闀挎槬浜屾ā]鍦2013骞寸殑鏄ヨ妭鑱旀鏅氫細涓,灏忓搧銆婂ぇ鍩庡皬浜嬨嬬粰浜轰滑鐣欎笅浜嗘繁鍒荤殑鍗拌薄,鍏朵腑鏈変笉灏戠粡鍏稿彴璇嶈浜轰滑浼犺,涔熸湁涓浜涚粡鍏稿彴璇嶄护浜哄洖鍛炽備笅闈㈡垚璇垨鍏告晠鎵琛ㄨ揪鐨勫摬瀛﹀瘬鎰忎笌鈥滀綘浠笉鎷胯繖鍎垮綋瀹,杩欏効鎬庝箞鎶婁綘浠綋浜蹭汉鈥濇墍浣撶幇鐨勯亾鐞嗙浉鍚岀殑鏄( ) A.寰楅亾澶氬姪,澶遍亾瀵″姪 B.鍏煎惉鍒欐槑,鍋忎俊鍒欐殫 C.鍏垫潵灏嗘尅... 绛旓細鎵浠閿欒锛嶣銆佸彉鍘嬪櫒鐨勮緭鍑哄姛鐜囧拰杈撳叆鐨勫姛鐜囩浉绛夛紝鎵浠ヨ緭鍑虹殑鍔熺巼澶у皬涓篜0锛屾墍浠閿欒锛嶤銆佸彉鍘嬪櫒鐨勮緭鍑哄姛鐜囧拰杈撳叆鐨勫姛鐜囩浉绛夛紝鎵浠0=UI锛屾墍浠ュ壇绾垮湀涓ょ鐢靛帇鐨勬湁鏁堝间负P0I锛屾墍浠閿欒锛嶥銆佽緭鍑虹殑鎬诲姛鐜囦负mgv锛岃緭鍏ョ殑鎬诲姛鐜囦负P0锛屾墍浠ユ暣涓缃殑鏁堢巼涓簃gvP0锛屾墍浠姝ｇ‘锛庢晠閫塂锛 绛旓細鍚戝績鍔汧鍚=mgtan60掳=3mg锛屾晠C姝ｇ‘锛汥銆佸灏忕悆a锛岀敱鏈烘鑳藉畧鎭掑畾寰嬪緱锛歮gL锛1-cos60掳锛=12mv2锛屽湪鏈浣庣偣锛岀敱鐗涢】绗簩瀹氬緥寰楋細Fa-mg=mv2L锛岃В寰楋細Fa=2mg锛屽灏忕悆b锛岀怀瀛愭媺鍔汧b=mgcos60掳=2mg锛孎a=Fb锛屾晠D姝ｇ‘锛涙湰棰橀夐敊璇殑锛屾晠閫夛細B锛 本站交流只代表网友个人观点，与本站立场无关 |
