物理题，万有引力。
\u7269\u7406\u4e07\u6709\u5f15\u529b\u4e60\u98982. \u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f\uff08 \uff09
A. \u7b2c\u4e00\u5b87\u5b99\u901f\u5ea6\u662f\u4eba\u9020\u536b\u661f\u73af\u7ed5\u5730\u7403\u8fd0\u52a8\u7684\u901f\u5ea6
B. \u7b2c\u4e00\u5b87\u5b99\u901f\u5ea6\u662f\u4eba\u9020\u536b\u661f\u5728\u5730\u9762\u9644\u8fd1\u7ed5\u5730\u7403\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\u6240\u5fc5\u987b\u5177\u6709\u7684\u901f\u5ea6
C. \u5982\u679c\u9700\u8981\uff0c\u5730\u7403\u540c\u6b65\u901a\u8baf\u536b\u661f\u53ef\u4ee5\u5b9a\u70b9\u5728\u5730\u7403\u4e0a\u7a7a\u7684\u4efb\u4f55\u4e00\u70b9
D. \u5730\u7403\u540c\u6b65\u901a\u8baf\u536b\u661f\u7684\u8f68\u9053\u53ef\u4ee5\u662f\u5706\u7684\u4e5f\u53ef\u4ee5\u662f\u692d\u5706\u7684
3. \u5173\u4e8e\u73af\u7ed5\u5730\u7403\u8fd0\u8f6c\u7684\u4eba\u9020\u5730\u7403\u536b\u661f\uff0c\u6709\u5982\u4e0b\u51e0\u79cd\u8bf4\u6cd5\uff0c\u5176\u4e2d\u6b63\u786e\u7684\u662f\uff08 \uff09
A. \u8f68\u9053\u534a\u5f84\u8d8a\u5927\uff0c\u901f\u5ea6\u8d8a\u5c0f\uff0c\u5468\u671f\u8d8a\u957f
B. \u8f68\u9053\u534a\u5f84\u8d8a\u5927\uff0c\u901f\u5ea6\u8d8a\u5927\uff0c\u5468\u671f\u8d8a\u77ed
C. \u8f68\u9053\u534a\u5f84\u8d8a\u5927\uff0c\u901f\u5ea6\u8d8a\u5927\uff0c\u5468\u671f\u8d8a\u957f
D. \u8f68\u9053\u534a\u5f84\u8d8a\u5c0f\uff0c\u901f\u5ea6\u8d8a\u5c0f\uff0c\u5468\u671f\u8d8a\u957f
4\uff0e\u540c\u6b65\u536b\u661f\u662f\u6307\u76f8\u5bf9\u4e8e\u5730\u9762\u4e0d\u52a8\u7684\u4eba\u9020\u5730\u7403\u536b\u661f \uff08 \uff09
A\uff0e\u5b83\u53ef\u4ee5\u5728\u5730\u9762\u4e0a\u4efb\u4e00\u70b9\u7684\u6b63\u4e0a\u65b9\uff0c\u4e14\u79bb\u5730\u5fc3\u7684\u8ddd\u79bb\u53ef\u6309\u9700\u8981\u9009\u62e9\u4e0d\u540c\u503c
B\uff0e\u5b83\u53ef\u4ee5\u5728\u5730\u9762\u4e0a\u4efb\u4e00\u70b9\u7684\u6b63\u4e0a\u65b9\uff0c\u4f46\u79bb\u5730\u5fc3\u7684\u8ddd\u79bb\u662f\u4e00\u5b9a\u7684
C\uff0e\u5b83\u53ea\u80fd\u5728\u8d64\u9053\u7684\u6b63\u4e0a\u65b9\uff0c\u4f46\u79bb\u5730\u5fc3\u7684\u8ddd\u79bb\u53ef\u6309\u9700\u8981\u9009\u62e9\u4e0d\u540c\u503c
D\uff0e\u5b83\u53ea\u80fd\u5728\u8d64\u9053\u7684\u6b63\u4e0a\u65b9\uff0c\u4e14\u79bb\u5730\u5fc3\u7684\u8ddd\u79bb\u662f\u4e00\u5b9a\u7684
5\u3001\u79d1\u5b66\u5bb6\u4eec\u63a8\u6d4b\uff0c\u592a\u9633\u7cfb\u7684\u7b2c\u5341\u9897\u884c\u661f\u5c31\u5728\u5730\u7403\u7684\u8f68\u9053\u4e0a\uff0c\u4ece\u5730\u7403\u4e0a\u770b\uff0c\u5b83\u6c38\u8fdc\u5728\u592a\u9633\u7684\u80cc\u9762\uff0c\u4eba\u7c7b\u4e00\u76f4\u672a\u80fd\u53d1\u73b0\u5b83\uff0c\u53ef\u4ee5\u8bf4\u662f\u201c\u9690\u5c45\u201d\u7740\u7684\u5730\u7403\u7684\u201c\u5b6a\u751f\u5144\u5f1f\u201d\uff0e\u7531\u4ee5\u4e0a\u4fe1\u606f\u53ef\u4ee5\u786e\u5b9a\uff1a\uff08 \uff09
A.\u8fd9\u9897\u884c\u661f\u7684\u516c\u8f6c\u5468\u671f\u4e0e\u5730\u7403\u76f8\u7b49 B\uff0e\u8fd9\u9897\u884c\u661f\u7684\u534a\u5f84\u7b49\u4e8e\u5730\u7403\u7684\u534a\u5f84
C.\u8fd9\u9897\u884c\u661f\u7684\u5bc6\u5ea6\u7b49\u4e8e\u5730\u7403\u7684\u5bc6\u5ea6 D\uff0e\u8fd9\u9897\u884c\u661f\u4e0a\u540c\u6837\u5b58\u5728\u7740\u751f\u547d
6.\u82e5\u5df2\u77e5\u884c\u661f\u7ed5\u592a\u9633\u516c\u8f6c\u7684\u534a\u5f84\u4e3ar\uff0c\u516c\u8f6c\u7684\u5468\u671f\u4e3aT\uff0c\u4e07\u6709\u5f15\u529b\u6052\u91cf\u4e3aG\uff0c\u5219\u7531\u6b64\u53ef\u6c42\u51fa\uff08 \uff09
A.\u67d0\u884c\u661f\u7684\u8d28\u91cf B.\u592a\u9633\u7684\u8d28\u91cf
C.\u67d0\u884c\u661f\u7684\u5bc6\u5ea6 D.\u592a\u9633\u7684\u5bc6\u5ea6
7.2001\u5e7410\u670822\u65e5\uff0c\u6b27\u6d32\u822a\u5929\u5c40\u7531\u536b\u661f\u89c2\u6d4b\u53d1\u73b0\u94f6\u6cb3\u7cfb\u4e2d\u5fc3\u5b58\u5728\u4e00\u4e2a\u8d85\u5927\u578b\u9ed1\u6d1e\uff0c\u547d\u540d\u4e3aMCG6\uff0d30\uff0d15\uff0c\u7531\u4e8e\u9ed1\u6d1e\u7684\u5f3a\u5927\u5f15\u529b\uff0c\u5468\u56f4\u7269\u8d28\u5927\u91cf\u6389\u5165\u9ed1\u6d1e\uff0c\u5047\u5b9a\u94f6\u6cb3\u7cfb\u4e2d\u5fc3\u4ec5\u6b64\u4e00\u4e2a\u9ed1\u6d1e\uff0c\u5df2\u77e5\u592a\u9633\u7cfb\u7ed5\u94f6\u6cb3\u7cfb\u4e2d\u5fc3\u5300\u901f\u8fd0\u8f6c\uff0c\u4e0b\u5217\u54ea\u4e00\u7ec4\u6570\u636e\u53ef\u4f30\u7b97\u8be5\u9ed1\u6d1e\u7684\u8d28\u91cf\uff08 \uff09
A.\u5730\u7403\u7ed5\u592a\u9633\u516c\u8f6c\u7684\u5468\u671f\u548c\u901f\u5ea6
B.\u592a\u9633\u7684\u8d28\u91cf\u548c\u8fd0\u884c\u901f\u5ea6
C.\u592a\u9633\u8d28\u91cf\u548c\u5230MCG6\uff0d30\uff0d15\u7684\u8ddd\u79bb
D.\u592a\u9633\u8fd0\u884c\u901f\u5ea6\u548c\u5230MCG6\uff0d30\uff0d15\u7684\u8ddd\u79bb
8\uff0e\u4e24\u884c\u661fA\u3001B\u5404\u6709\u4e00\u9897\u536b\u661fa\u548cb \uff0c\u536b\u661f\u7684\u5706\u8f68\u9053\u63a5\u8fd1\u5404\u81ea\u884c\u661f\u8868\u9762\uff0c\u5982\u679c\u4e24\u884c\u661f\u8d28\u91cf\u4e4b\u6bd4MA\uff1aMB=p\uff0c\u4e24\u884c\u661f\u534a\u5f84\u4e4b\u6bd4RA\uff1aRB\uff1dq\u5219\u4e24\u4e2a\u536b\u661f\u5468\u671f\u4e4b\u6bd4Ta\uff1aTb\u4e3a ( )
A\uff0e B. C. D.
9\uff0e\u4e00\u5b87\u5b99\u98de\u8239\u7ed5\u5730\u7403\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u98de\u8239\u539f\u6765\u7684\u7ebf\u901f\u5ea6\u662fv1\uff0c\u5468\u671f\u662fT1\uff0c\u5047\u8bbe\u5728\u67d0\u65f6\u523b\u5b83\u5411\u540e\u55b7\u6c14\u505a\u52a0\u901f\u8fd0\u52a8\u540e\uff0c\u8fdb\u5165\u65b0\u8f68\u9053\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u8fd0\u52a8\u7684\u7ebf\u901f\u5ea6\u662fv2\uff0c\u5468\u671f\u662fT2\uff0c\u5219\uff08 \uff09
A\uff0ev1\uff1ev2\uff0cT1\uff1eT2 B\uff0ev1\uff1ev2\uff0cT1\uff1cT2
C\uff0ev1\uff1cv2\uff0cT1\uff1eT2 D\uff0ev1\uff1cv2\uff0cT1\uff1cT2
10.\u5173\u4e8e\u5f00\u666e\u52d2\u884c\u661f\u8fd0\u52a8\u7684\u516c\u5f0f\uff1dk\uff0c\u4ee5\u4e0b\u7406\u89e3\u6b63\u786e\u7684\u662f\uff08 \uff09
A.k\u662f\u4e00\u4e2a\u4e0e\u884c\u661f\u65e0\u5173\u7684\u5e38\u91cf
B.\u82e5\u5730\u7403\u7ed5\u592a\u9633\u8fd0\u8f6c\u8f68\u9053\u7684\u534a\u957f\u8f74\u4e3aR\u5730\uff0c\u5468\u671f\u4e3aT\u5730\uff1b\u6708\u7403\u7ed5\u5730\u7403\u8fd0\u8f6c\u8f68\u9053\u7684\u957f\u534a\u8f74\u4e3aR\u6708\uff0c\u5468\u671f\u4e3aT\u6708\uff0c\u5219
C.T\u8868\u793a\u884c\u661f\u8fd0\u52a8\u7684\u81ea\u8f6c\u5468\u671f
D.T\u8868\u793a\u884c\u661f\u8fd0\u52a8\u7684\u516c\u8f6c\u5468\u671f
11\uff0e\u5730\u7403\u540c\u6b65\u536b\u661f\u5230\u5730\u5fc3\u7684\u8ddd\u79bbr\u53ef\u7531r3=\u6c42\u51fa.\u5df2\u77e5\u5f0f\u4e2da\u7684\u5355\u4f4d\u662fm\uff0cb\u7684\u5355\u4f4d\u662fs\uff0cc\u7684\u5355\u4f4d\u662fm/s2\uff0c\u5219 \uff08 \uff09
A\uff0ea\u662f\u5730\u7403\u534a\u5f84\uff0cb\u662f\u5730\u7403\u81ea\u8f6c\u7684\u5468\u671f\uff0cc\u662f\u5730\u7403\u8868\u9762\u5904\u7684\u91cd\u529b\u52a0\u901f\u5ea6
B\uff0ea\u662f\u5730\u7403\u534a\u5f84\uff0cb\u662f\u540c\u6b65\u536b\u661f\u7ed5\u5730\u5fc3\u8fd0\u52a8\u7684\u5468\u671f\uff0cc\u662f\u540c\u6b65\u536b\u661f\u7684\u52a0\u901f\u5ea6
C\uff0ea\u662f\u8d64\u9053\u5468\u957f\uff0cb\u662f\u5730\u7403\u81ea\u8f6c\u7684\u5468\u671f\uff0cc\u662f\u540c\u6b65\u536b\u661f\u7684\u52a0\u901f\u5ea6
D\uff0ea\u662f\u5730\u7403\u534a\u5f84\uff0cb\u662f\u540c\u6b65\u536b\u661f\u7ed5\u5730\u5fc3\u8fd0\u52a8\u7684\u5468\u671f\uff0cc\u662f\u5730\u7403\u8868\u9762\u5904\u7684\u91cd\u529b\u52a0\u901f\u5ea6
12\uff0e\u4e24\u4e2a\u884c\u661f\u5404\u6709\u4e00\u4e2a\u536b\u661f\u7ed5\u5176\u8868\u9762\u8fd0\u884c\uff0c\u5df2\u77e5\u4e24\u4e2a\u536b\u661f\u7684\u5468\u671f\u4e4b\u6bd4\u4e3a1\u22362\uff0c\u4e24\u884c\u661f\u534a\u5f84\u4e4b\u6bd4\u4e3a2\u22361 \uff0c\u5219\uff08 \uff09
A\uff0e\u4e24\u884c\u661f\u5bc6\u5ea6\u4e4b\u6bd4\u4e3a4\u22361 B\uff0e\u4e24\u884c\u661f\u8d28\u91cf\u4e4b\u6bd4\u4e3a16\u22361
C\uff0e\u4e24\u884c\u661f\u8868\u9762\u5904\u91cd\u529b\u52a0\u901f\u5ea6\u4e4b\u6bd4\u4e3a8\u22361 D\uff0e\u4e24\u536b\u661f\u7684\u901f\u7387\u4e4b\u6bd4\u4e3a4\u22361
13\uff0e\u4e24\u9897\u4eba\u9020\u536b\u661fA\u3001B\u7684\u8d28\u91cf\u4e4b\u6bd4mA\u2236mB=1\u22362\uff0c\u8f68\u9053\u534a\u5f84\u4e4b\u6bd4rA\u2236rB=1\u22363\uff0c\u67d0\u4e00\u65f6\u523b\u5b83\u4eec\u7684\u8fde\u7ebf\u901a\u8fc7\u5730\u5fc3\uff0c\u5219\u6b64\u65f6\u5b83\u4eec\u7684\u7ebf\u901f\u5ea6\u4e4b\u6bd4vA\u2236vB= \uff0c\u5411\u5fc3\u52a0\u901f\u5ea6\u4e4b\u6bd4aA\u2236aB= \uff0c\u5411\u5fc3\u529b\u4e4b\u6bd4FA\u2236FB= \u3002
14.\u5730\u7403\u7ed5\u592a\u9633\u8fd0\u884c\u7684\u534a\u957f\u8f74\u4e3a1.5\u00d71011 m\uff0c\u5468\u671f\u4e3a365 \u5929\uff1b\u6708\u7403\u7ed5\u5730\u7403\u8fd0\u884c\u7684\u8f68\u9053\u534a\u957f\u8f74\u4e3a3.82\u00d7108m\uff0c\u5468\u671f\u4e3a27.3 \u5929\uff0c\u5219\u5bf9\u4e8e\u7ed5\u592a\u9633\u8fd0\u884c\u7684\u884c\u661f\uff0cR3\uff0fT2\u7684\u503c\u4e3a______m3\uff0fs2\uff1b\u5bf9\u4e8e\u7ed5\u5730\u7403\u8fd0\u884c\u7684\u7269\u4f53\uff0c\u5219R3\uff0fT2\uff1d________ m3/s2.
15.\uff0810\u5206\uff09\u5b87\u822a\u5458\u9a7e\u9a76\u4e00\u98de\u8239\u5728\u9760\u8fd1\u67d0\u884c\u661f\u8868\u9762\u9644\u8fd1\u7684\u5706\u5f62\u8f68\u9053\u4e0a\u8fd0\u884c\uff0c\u5df2\u77e5\u98de\u8239\u8fd0\u884c\u7684\u5468\u671f\u4e3aT\uff0c\u884c\u661f\u7684\u5e73\u5747\u5bc6\u5ea6\u4e3a\u3002\u8bd5\u8bc1\u660e\uff08\u4e07\u6709\u5f15\u529b\u6052\u91cfG\u4e3a\u5df2\u77e5\uff0c\u662f\u6052\u91cf\uff09
17.\uff0812\u5206\uff09\u795e\u821f\u4e94\u53f7\u8f7d\u4eba\u98de\u8239\u5728\u7ed5\u5730\u7403\u98de\u884c\u7684\u7b2c5\u5708\u8fdb\u884c\u53d8\u8f68\uff0c\u7531\u539f\u6765\u7684\u692d\u5706\u8f68\u9053\u53d8\u4e3a\u8ddd\u5730\u9762\u9ad8\u5ea6h=342km\u7684\u5706\u5f62\u8f68\u9053\u3002\u5df2\u77e5\u5730\u7403\u534a\u5f84\uff0c\u5730\u9762\u5904\u7684\u91cd\u529b\u52a0\u901f\u5ea6\u3002\u8bd5\u5bfc\u51fa\u98de\u8239\u5728\u4e0a\u8ff0\u5706\u8f68\u9053\u4e0a\u8fd0\u884c\u7684\u5468\u671fT\u7684\u516c\u5f0f\uff08\u7528h\u3001R\u3001g\u8868\u793a\uff09\uff0c\u7136\u540e\u8ba1\u7b97\u5468\u671f\u7684\u6570\u503c\uff08\u4fdd\u7559\u4e24\u4f4d\u6709\u6548\u6570\u5b57\uff09\u3002
1.\u542f\u52a8\u536b\u661f\u7684\u53d1\u52a8\u673a\u4f7f\u5176\u901f\u5ea6\u589e\u5927\uff0c\u5f85\u5b83\u8fd0\u52a8\u5230\u8ddd\u79bb\u5730\u9762\u7684\u9ad8\u5ea6\u5fc5\u539f\u6765\u5927\u7684\u4f4d\u7f6e\uff0c\u518d\u5b9a\u4f4d\u4f7f\u5b83\u7ed5\u5730\u7403\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u6210\u4e3a\u53e6\u4e00\u8f68\u9053\u4e0a\u7684\u536b\u661f\uff0c\u8be5\u536b\u661f\u540e\u4e00\u8f68\u9053\u4e0e\u524d\u4e00\u8f68\u9053\u76f8\u6bd4\uff08C\uff09
A.\u901f\u5ea6\u589e\u5927 B.\u52a0\u901f\u5ea6\u589e\u5927 C.\u5468\u671f\u589e\u5927 D.\u673a\u68b0\u80fd\u53d8\u5c0f
3.\u5b87\u5b99\u4e2d\u67d0\u661f\u4f53\u6bcf\u96944.4\u00d710-4 s\u5c31\u5411\u5730\u7403\u53d1\u51fa\u4e00\u6b21\u7535\u78c1\u6ce2\u8109\u51b2\uff0e\u6709\u4eba\u66fe\u7ecf\u4e50\u89c2\u5730\u8ba4\u4e3a\uff0c\u8fd9\u662f\u5916\u661f\u4eba\u5411\u6211\u4eec\u5730\u7403\u4eba\u53d1\u51fa\u7684\u8054\u7edc\u4fe1\u53f7\uff0c\u800c\u5929\u6587\u5b66\u5bb6\u5426\u5b9a\u4e86\u8fd9\u79cd\u89c2\u70b9\uff0c\u8ba4\u4e3a\u8be5\u661f\u4f53\u4e0a\u6709\u4e00\u4e2a\u80fd\u8fde\u7eed\u53d1\u51fa\u7535\u78c1\u6ce2\u7684\u53d1\u5c04\u6e90\uff0c\u7531\u4e8e\u661f\u4f53\u56f4\u7ed5\u81ea\u8f6c\u8f74\u9ad8\u901f\u65cb\u8f6c\uff0c\u624d\u4f7f\u5f97\u5730\u7403\u4e0a\u63a5\u6536\u5230\u7684\u7535\u78c1\u6ce2\u662f\u4e0d\u8fde\u7eed\u7684\uff0e\u8bd5\u4f30\u7b97\u8be5\u661f\u4f53\u7684\u6700\u5c0f\u5bc6\u5ea6\uff0e\uff08\u7ed3\u679c\u4fdd\u7559\u4e24\u4f4d\u6709\u6548\u6570\u5b57\uff09
\u89e3\uff1a\u63a5\u6536\u7535\u78c1\u6ce2\u8109\u51b2\u7684\u95f4\u9694\u65f6\u95f4\u5373\u662f\u8be5\u661f\u4f53\u81ea\u8f6c\u7684\u6700\u5927\u5468\u671f
\u661f\u4f53\u8868\u9762\u7269\u4f53\u4e0d\u8131\u79bb\u661f\u4f53\u65f6\u6ee1\u8db3\uff1a
G = mR()2
\u800cM=\u03c0R3\u03c1
\u2234\u03c1=
\u4ee3\u5165\u5df2\u77e5\u6570\u636e\u5f97\uff1a\u03c1=7.3\u00d71017kg/m3
4.\u73b0\u4ee3\u89c2\u6d4b\u8868\u660e\uff0c\u7531\u4e8e\u5f15\u529b\u7684\u4f5c\u7528\uff0c\u6052\u661f\u6709\u201c\u805a\u7126\u201d\u7684\u7279\u70b9\uff0c\u4f17\u591a\u7684\u6052\u661f\u7ec4\u6210\u4e0d\u540c\u5c42\u6b21\u7684\u6052\u661f\u7cfb\u7edf\uff0c\u6700\u7b80\u5355\u7684\u6052\u661f\u7cfb\u7edf\u662f\u4e24\u9897\u4e92\u76f8\u7ed5\u8f6c\u7684\u53cc\u661f\uff0e\u5b83\u4eec\u4ee5\u4e24\u8005\u8fde\u7ebf\u4e0a\u7684\u67d0\u70b9\u4e3a\u5706\u5fc3\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u8fd9\u6837\u5c31\u4e0d\u81f3\u4e8e\u7531\u4e8e\u4e07\u6709\u5f15\u529b\u7684\u4f5c\u7528\u800c\u5438\u5f15\u5728\u4e00\u8d77\uff0e\u8bbe\u67d0\u53cc\u661f\u4e2dA\u3001B\u4e24\u661f\u7684\u8d28\u91cf\u5206\u522b\u4e3a m \u548c 3m\uff0c\u4e24\u661f\u95f4\u8ddd\u4e3aL\uff0c\u5728\u76f8\u4e92\u95f4\u4e07\u6709\u5f15\u529b\u7684\u4f5c\u7528\u4e0b\uff0c\u7ed5\u5b83\u4eec\u8fde\u7ebf\u4e0a\u7684\u67d0\u70b9O\u8f6c\u52a8\uff0c\u5219O\u70b9\u8dddB\u661f\u7684\u8ddd\u79bb\u662f\u591a\u5927\uff1f\u5b83\u4eec\u8fd0\u52a8\u7684\u5468\u671f\u4e3a\u591a\u5c11\uff1f
\u89e3\uff1a\u8bbeO\u70b9\u8dddB\u661f\u7684\u8ddd\u79bb\u4e3ax\uff0c\u53cc\u661f\u8fd0\u52a8\u7684\u5468\u671f\u4e3aT\uff0c\u7531\u4e07\u6709\u5f15\u529b\u63d0\u4f9b\u5411\u5fc3\u529b\uff0e
\u5bf9\u4e8eB\u661f\uff1aG= 3mx()2
\u5bf9\u4e8eA\u661f\uff1aG= m(L-x) ()2
\u2234 = 3
\u5373 x = L
\u2234 T =\u03c0L (3\u5206)
5.\u82e5\u4eba\u9020\u536b\u661f\u7ed5\u5730\u7403\u4f5c\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u5219\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f\uff08AD\uff09
A.\u536b\u661f\u7684\u8f68\u9053\u534a\u5f84\u8d8a\u5927\uff0c\u5b83\u7684\u8fd0\u884c\u901f\u5ea6\u8d8a\u5c0f
B.\u536b\u661f\u7684\u8f68\u9053\u534a\u5f84\u8d8a\u5927\uff0c\u5b83\u7684\u8fd0\u884c\u901f\u5ea6\u8d8a\u5927
C.\u536b\u661f\u7684\u8d28\u91cf\u4e00\u5b9a\u65f6\uff0c\u8f68\u9053\u534a\u5f84\u8d8a\u5927\uff0c\u5b83\u9700\u8981\u7684\u5411\u5fc3\u529b\u8d8a\u5927
D.\u536b\u661f\u7684\u8d28\u91cf\u4e00\u5b9a\u65f6\uff0c\u8f68\u9053\u534a\u5f84\u8d8a\u5927\uff0c\u5b83\u9700\u8981\u7684\u5411\u5fc3\u529b\u8d8a\u5c0f
6.1998\u5e741\u6708\u53d1\u5c04\u7684\u201c\u6708\u7403\u52d8\u63a2\u8005\u201d\u7a7a\u95f4\u63a2\u6d4b\u5668\uff0c\u8fd0\u7528\u6700\u65b0\u79d1\u6280\u624b\u6bb5\u5bf9\u6708\u7403\u8fdb\u884c\u8fd1\u8ddd\u79bb\u52d8\u63a2\uff0c\u5728\u6708\u7403\u91cd\u529b\u5206\u5e03\uff0c\u78c1\u573a\u5206\u5e03\u53ca\u5143\u7d20\u6d4b\u5b9a\u7b49\u65b9\u9762\u53d6\u5f97\u4e86\u65b0\u6210\u679c\uff0c\u63a2\u6d4b\u5668\u5728\u4e00\u4e9b\u73af\u5f62\u5c71\u4e2d\u53d1\u73b0\u4e86\u8d28\u91cf\u5bc6\u96c6\u533a\uff0c\u5f53\u98de\u5230\u8fd9\u4e9b\u8d28\u91cf\u5bc6\u96c6\u533a\u65f6\uff0c\u901a\u8fc7\u5730\u9762\u7684\u5927\u53e3\u5f84\u5c04\u7535\u671b\u8fdc\u955c\u89c2\u5bdf\uff0c\u201c\u6708\u7403\u52d8\u63a2\u8005\u201d\u7684\u8f68\u9053\u53c2\u6570\u53d1\u751f\u4e86\u5fae\u5c0f\u53d8\u5316\uff0c\u8fd9\u4e9b\u53d8\u5316\u662f(AD)
A .\u534a\u5f84\u53d8\u5c0f B.\u534a\u5f84\u53d8\u5927
C.\u901f\u7387\u53d8\u5c0f D.\u901f\u7387\u53d8\u5927
7.\u706b\u661f\u6709\u4e24\u9897\u536b\u661f\uff0c\u5206\u522b\u662f\u706b\u536b\u4e00\u548c\u706b\u536b\u4e8c\uff0c\u5b83\u4eec\u7684\u8f68\u9053\u8fd1\u4f3c\u4e3a\u5706.\u5df2\u77e5\u706b\u536b\u4e00\u7684\u5468\u671f\u4e3a7\u5c0f\u65f639\u5206.\u706b\u536b\u4e8c\u7684\u5468\u671f\u4e3a30\u5c0f\u65f618\u5206\uff0c\u5219\u4e24\u9897\u536b\u661f\u76f8\u6bd4(AC)
A.\u706b\u536b\u4e00\u8ddd\u706b\u661f\u8868\u9762\u8f83\u8fd1
B.\u706b\u536b\u4e8c\u7684\u89d2\u901f\u5ea6\u8f83\u5927
C.\u706b\u536b\u4e00\u7684\u8fd0\u52a8\u901f\u5ea6\u8f83\u5927
D.\u706b\u536b\u4e8c\u7684\u5411\u5fc3\u52a0\u901f\u5ea6\u8f83\u5927
8.\u571f\u661f\u5916\u5c42\u4e0a\u6709\u4e00\u4e2a\u73af.\u4e3a\u4e86\u5224\u65ad\u5b83\u662f\u571f\u661f\u7684\u4e00\u90e8\u5206\u8fd8\u662f\u571f\u661f\u7684\u536b\u661f\u7fa4\uff0c\u53ef\u4ee5\u6d4b\u91cf\u73af\u4e2d\u5404\u5c42\u7684\u7ebf\u901f\u5ea6V\u4e0e\u8be5\u5c42\u5230\u571f\u661f\u4e2d\u5fc3\u7684\u8ddd\u79bbR\u4e4b\u95f4\u7684\u5173\u7cfb\u6765\u5224\u65ad ( AD )
A.\u82e5V \u221dR\uff0c\u5219\u8be5\u5c42\u662f\u571f\u661f\u7684\u4e00\u90e8\u5206
B.\u82e5V2 \u221dR\uff0c\u5219\u8be5\u5c42\u662f\u571f\u661f\u7684\u536b\u661f\u7fa4
C.\u82e5V \u221d\uff0c\u5219\u8be5\u5c42\u662f\u571f\u661f\u7684\u4e00\u90e8\u5206
D.\u82e5V2\u221d\uff0c\u5219\u8be5\u5c42\u662f\u571f\u661f\u7684\u536b\u661f\u7fa4
9.\u6211\u4eec\u7684\u94f6\u6cb3\u7cfb\u7684\u6052\u661f\u4e2d\u5927\u7ea6\u56db\u5206\u4e4b\u4e00\u662f\u53cc\u661f.\u67d0\u53cc\u661f\u7531\u8d28\u91cf\u4e0d\u7b49\u7684\u661f\u4f53S1\u548cS2\u6784\u6210\uff0c\u4e24\u661f\u5728\u76f8\u4e92\u4e4b\u95f4\u7684\u4e07\u6709\u5f15\u529b\u4f5c\u7528\u4e0b\u7ed5\u4e24\u8005\u8fde\u7ebf\u4e0a\u67d0\u4e00\u5b9a\u70b9C\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8.\u7531\u5929\u6587\u89c2\u5bdf\u6d4b\u5f97\u5176\u8fd0\u52a8\u5468\u671f\u4e3aT\uff0cS1\u5230C\u70b9\u7684\u8ddd\u79bb\u4e3ar1\uff0cS1\u548cS2\u7684\u8ddd\u79bb\u4e3ar\uff0c\u5df2\u77e5\u5f15\u529b\u5e38\u91cf\u4e3aG.\u7531\u6b64\u53ef\u6c42\u51faS1\u7684\u8d28\u91cf\u4e3a\uff08A\uff09
A\uff0e B\uff0e C\uff0e D\uff0e
10.\u4e00\u8258\u5b87\u5b99\u98de\u8239\u98de\u8fd1\u67d0\u4e00\u65b0\u53d1\u73b0\u7684\u884c\u661f\uff0c\u5e76\u8fdb\u5165\u9760\u8fd1\u884c\u661f\u8868\u9762\u7684\u5706\u5f62\u8f68\u9053\u7ed5\u884c\u6570\u5708\u540e\uff0c\u7740\u9646\u5728\u8be5\u884c\u661f\u4e0a\uff0c\u98de\u8239\u4e0a\u5907\u6709\u4ee5\u4e0b\u5b9e\u9a8c\u5668\u6750\uff1a
A\uff0e\u7cbe\u786e\u79d2\u8868\u4e00\u4e2a B\uff0e\u5df2\u77e5\u8d28\u91cf\u4e3am\u7684\u7269\u4f53\u4e00\u4e2a
C\uff0e\u5f39\u7c27\u6d4b\u529b\u8ba1\u4e00\u4e2a D\uff0e\u5929\u5e73\u4e00\u53f0\uff08\u9644\u781d\u7801\uff09
\u5df2\u77e5\u5b87\u822a\u5458\u5728\u7ed5\u884c\u65f6\u548c\u7740\u9646\u540e\u5404\u4f5c\u4e86\u4e00\u6b21\u6d4b\u91cf\uff0c\u4f9d\u636e\u6d4b\u91cf\u6570\u636e\uff0c\u53ef\u6c42\u51fa\u8be5\u884c\u661f\u7684\u534a\u5f84R
\u548c\u884c\u661f\u8d28\u91cfM\u3002\uff08\u5df2\u77e5\u4e07\u6709\u5f15\u529b\u5e38\u91cf\u4e3aG\uff09
\uff081\uff09\u4e24\u6b21\u6d4b\u91cf\u6240\u9009\u7528\u7684\u5668\u6750\u5206\u522b\u4e3a \u3001 \u3002\uff08\u7528\u5e8f\u53f7\u8868\u793a\uff09
\uff082\uff09\u4e24\u6b21\u6d4b\u91cf\u7684\u7269\u7406\u91cf\u5206\u522b\u662f \u3001 \u3002
\uff083\uff09\u7528\u8be5\u6570\u636e\u63a8\u51fa\u534a\u5f84R\u3001\u8d28\u91cfM\u7684\u8868\u8fbe\u5f0f\uff1aR= \uff0cM= \u3002\u3010\u7b54\u6848\u3011\uff08\u6bcf\u7a7a2\u5206\uff09\uff081\uff09A\uff1bBC \uff082\uff09\u5468\u671fT\uff1b\u7269\u4f53\u7684\u91cd\u529bF \uff083\uff09
11.\u5728\u52c7\u6c14\u53f7\u706b\u661f\u63a2\u6d4b\u5668\u7740\u9646\u7684\u6700\u540e\u9636\u6bb5\uff0c\u7740\u9646\u5668\u964d\u843d\u5230\u706b\u661f\u8868\u9762\u4e0a\uff0c\u518d\u7ecf\u8fc7\u591a\u6b21\u5f39\u8df3\u624d\u505c\u4e0b\u6765.\u5047\u8bbe\u7740\u9646\u5668\u7b2c\u4e00\u6b21\u843d\u5230\u706b\u661f\u8868\u9762\u5f39\u8d77\u540e\uff0c\u5230\u8fbe\u6700\u9ad8\u70b9\u65f6\u9ad8\u5ea6\u4e3ah\uff0c\u901f\u5ea6\u65b9\u5411\u662f\u6c34\u5e73\u7684\uff0c\u901f\u5ea6\u5927\u5c0f\u4e3a\u03c50\uff0c\u6c42\u5b83\u7b2c\u4e8c\u6b21\u843d\u5230\u706b\u661f\u8868\u9762\u65f6\u901f\u5ea6\u7684\u5927\u5c0f\uff0c\u8ba1\u7b97\u65f6\u4e0d\u8ba1\u5927\u6c14\u963b\u529b.\u5df2\u77e5\u706b\u661f\u7684\u4e00\u4e2a\u536b\u661f\u7684\u5706\u8f68\u9053\u7684\u534a\u5f84\u4e3ar\uff0c\u5468\u671f\u4e3aT.\u706b\u661f\u53ef\u89c6\u4e3a\u534a\u5f84\u4e3ar0\u7684\u5747\u5300\u7403\u4f53.
\u89e3\uff1a\u8bbe\u706b\u661f\u7684\u8d28\u91cf\u4e3aM\uff1b\u706b\u661f\u7684\u4e00\u4e2a\u536b\u661f\u7684\u8d28\u91cf\u4e3am \uff0c\u706b\u661f\u63a2\u6d4b\u5668\u7684\u8d28\u91cf\u4e3am\u2019,\u5728\u706b\u661f\u8868\u9762\u65f6\u91cd\u529b\u52a0\u901f\u5ea6\u4e3ag\u2032. \u6709
\u5bf9\u706b\u661f\u7684\u4e00\u4e2a\u536b\u661f\uff1a GMrm2 = m( 2\u03c0 )2r \u2460
\u5bf9\u706b\u661f\u63a2\u6d4b\u5668\uff1a GMrm02\u2032 = m\u2032g\u2032 \u2461
\u03c512 =2 g\u2032h \u2462
\u03c5 = \u221a\u03c512 +\u03c502 \u2463
\u7531\u4ee5\u4e0a\u5404\u5f0f\u5f97 \u03c5 =\u221a8\u03c022h r02 r3 +\u03c502 \u2464
13.\u6d77\u738b\u661f\u662f\u7ed5\u592a\u9633\u8fd0\u52a8\u7684\u4e00\u9897\u884c\u661f\uff0c\u5b83\u6709\u4e00\u9897\u536b\u661f\u53eb\u6d77\u536b1.\u82e5\u5c06\u6d77\u738b\u661f\u7ed5\u592a\u9633\u7684\u8fd0\u52a8\u548c\u6d77\u536b1\u7ed5\u6d77\u738b\u661f\u7684\u8fd0\u52a8\u5747\u770b\u4f5c\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u5219\u8981\u8ba1\u7b97\u6d77\u738b\u661f\u7684\u8d28\u91cf\uff0c\u9700\u8981\u77e5\u9053\u7684\u91cf\u662f\uff08\u5f15\u529b\u5e38\u91cfG\u4e3a\u5df2\u77e5\u91cf\uff09\uff08A\uff09
A.\u6d77\u536b1\u7ed5\u6d77\u738b\u661f\u8fd0\u52a8\u7684\u5468\u671f\u548c\u534a\u5f84
B.\u6d77\u738b\u661f\u7ed5\u592a\u9633\u8fd0\u52a8\u7684\u5468\u671f\u548c\u534a\u5f84
C.\u6d77\u536b1\u7ed5\u6d77\u738b\u661f\u8fd0\u52a8\u7684\u5468\u671f\u548c\u6d77\u536b1\u7684\u8d28\u91cf
D.\u6d77\u738b\u661f\u7ed5\u592a\u9633\u8fd0\u52a8\u7684\u5468\u671f\u548c\u592a\u9633\u7684\u8d28\u91cf
14.\u6211\u56fd\u53d1\u5c04\u7684\u795e\u5dde\u4e94\u53f7\u8f7d\u4eba\u5b87\u5b99\u98de\u8239\u7684\u5468\u671f\u7ea6\u4e3a90min\uff0c\u5982\u679c\u628a\u5b83\u7ed5\u5730\u7403\u7684\u8fd0\u52a8\u770b\u4f5c\u662f\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u98de\u8239\u7684\u8fd0\u52a8\u548c\u4eba\u9020\u5730\u7403\u540c\u6b65\u536b\u661f\u7684\u8fd0\u52a8\u76f8\u6bd4\uff0c\u4e0b\u5217\u5224\u65ad\u4e2d\u6b63\u786e\u7684\u662f\uff08C\uff09
A.\u98de\u8239\u7684\u8f68\u9053\u534a\u5f84\u5927\u4e8e\u540c\u6b65\u536b\u661f\u7684\u8f68\u9053\u534a\u5f84
B.\u98de\u8239\u7684\u8fd0\u884c\u901f\u5ea6\u5c0f\u4e8e\u540c\u6b65\u536b\u661f\u7684\u8fd0\u884c\u901f\u5ea6
C.\u98de\u8239\u8fd0\u52a8\u7684\u5411\u5fc3\u52a0\u901f\u5ea6\u5927\u4e8e\u540c\u6b65\u536b\u661f\u8fd0\u52a8\u7684\u5411\u5fc3\u52a0\u901f\u5ea6
D.\u98de\u8239\u8fd0\u52a8\u7684\u89d2\u901f\u5ea6\u5c0f\u4e8e\u540c\u6b65\u536b\u661f\u8fd0\u52a8\u7684\u89d2\u901f\u5ea6
15.\u661f\u7403\u4e0a\u7684\u7269\u4f53\u8131\u79bb\u661f\u7403\u5f15\u529b\u6240\u9700\u7684\u6700\u5c0f\u901f\u5ea6\u79f0\u4e3a\u7b2c\u4e8c\u5b87\u5b99\u901f\u5ea6.\u661f\u7403\u7684\u7b2c\u4e8c\u5b87\u5b99\u901f\u5ea6v2\u4e0e\u4e0e\u7b2c\u4e00\u5b87\u5b99\u901f\u5ea6v1\u7684\u5173\u7cfb\u4e3a\u662fv2=v1.\u5df2\u77e5\u67d0\u661f\u7403\u7684\u534a\u5f84\u4e3ar\uff0c\u5b83\u8868\u9762\u7684\u91cd\u529b\u52a0\u901f\u5ea6\u4e3a\u5730\u7403\u8868\u9762\u91cd\u529b\u52a0\u901f\u5ea6g\u76841/6.\u4e0d\u8ba1\u5176\u5b83\u661f\u7403\u7684\u5f71\u54cd\uff0c\u5219\u8be5\u661f\u7403\u7684\u7b2c\u4e8c\u5b87\u5b99\u901f\u5ea6\u4e3a\uff08C\uff09
A. B. C. D.
17.2003\u5e7410\u670815\u65e5\uff0c\u6211\u56fd\u795e\u821f\u4e94\u53f7\u8f7d\u4eba\u98de\u8239\u6210\u529f\u53d1\u5c04.\u6807\u5fd7\u7740\u6211\u56fd\u7684\u822a\u5929\u4e8b\u4e1a\u53d1\u5c55\u5230\u4e86\u4e00\u4e2a\u5f88\u9ad8\u7684\u6c34\u5e73.\u98de\u8239\u5728\u7ed5\u5730\u7403\u98de\u884c\u7684\u7b2c5\u5708\u8fdb\u884c\u53d8\u8f68\uff0c\u7531\u539f\u6765\u7684\u692d\u5706\u8f68\u9053\u53d8\u4e3a\u8ddd\u5730\u9762\u9ad8\u5ea6\u4e3ah\u7684\u5706\u5f62\u8f68\u9053.\u5df2\u77e5\u5730\u7403\u534a\u5f84\u4e3aR\uff0c\u5730\u9762\u5904\u7684\u91cd\u529b\u52a0\u901f\u5ea6\u4e3ag\uff0c\u6c42\uff1a
\u2474\u98de\u8239\u5728\u4e0a\u8ff0\u5706\u5f62\u8f68\u9053\u4e0a\u8fd0\u884c\u7684\u901f\u5ea6v\uff1b
\u2475\u98de\u8239\u5728\u4e0a\u8ff0\u5706\u5f62\u8f68\u9053\u4e0a\u8fd0\u884c\u7684\u5468\u671fT.
\u2474 \u2475
18.2003\u5e7410\u670815\u65e5\uff0c\u6211\u56fd\u5229\u7528\u201c\u795e\u5dde\u4e94\u53f7\u201d\u98de\u8239\u5c06\u4e00\u540d\u5b87\u822a\u5458\u9001\u5165\u592a\u7a7a\uff0c\u4e2d\u56fd\u6210\u4e3a\u7ee7\u4fc4\u3001\u7f8e\u4e4b\u540e\u7b2c\u4e09\u4e2a\u638c\u63e1\u8f7d\u4eba\u822a\u5929\u6280\u672f\u7684\u56fd\u5bb6.\u8bbe\u5b87\u822a\u5458\u6d4b\u51fa\u81ea\u5df1\u7ed5\u5730\u7403\u7403\u5fc3\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\u7684\u5468\u671fT\uff0c\u79bb\u5730\u9762\u7684\u9ad8\u5ea6\u4e3ah\uff0c\u5730\u7403\u534a\u5f84\u4e3aR.\u6839\u636eT\u3001h\u3001R\u548c\u4e07\u6709\u5f15\u529b\u6052\u91cfG\uff0c\u5b87\u822a\u5458\u4e0d\u80fd\u8ba1\u7b97\u51fa\u4e0b\u9762\u7684\u54ea\u4e00\u9879\uff08C\uff09
A.\u5730\u7403\u7684\u8d28\u91cf B.\u5730\u7403\u7684\u5e73\u5747\u5bc6\u5ea6
C.\u98de\u8239\u6240\u9700\u7684\u5411\u5fc3\u529b D.\u98de\u8239\u7ebf\u901f\u5ea6\u7684\u5927\u5c0f
19.1990\u5e745\u6708\uff0c\u7d2b\u91d1\u5c71\u5929\u6587\u53f0\u5c06\u4ed6\u4eec\u53d1\u73b0\u7684\u7b2c2752\u53f7\u5c0f\u884c\u661f\u547d\u540d\u4e3a\u5434\u5065\u96c4\u661f\uff0c\u8be5\u5c0f\u884c\u661f\u7684\u534a\u5f84\u4e3a16km.\u82e5\u5c06\u6b64\u5c0f\u884c\u661f\u548c\u5730\u7403\u5747\u770b\u6210\u8d28\u91cf\u5206\u5e03\u5747\u5300\u7684\u7403\u4f53\uff0c\u5c0f\u884c\u661f\u5bc6\u5ea6\u548c\u5730\u7403\u76f8\u540c.\u5df2\u77e5\u5730\u7403\u534a\u5f84R=6400km\uff0c\u5730\u7403\u8868\u9762\u91cd\u529b\u52a0\u901f\u5ea6\u4e3ag.\u8fd9\u4e2a\u5c0f\u884c\u661f\u8868\u9762\u7684\u91cd\u529b\u52a0\u901f\u5ea6\u4e3a\uff08B\uff09
A.400g B. C.20g D.
20.\u4e00\u9897\u4eba\u9020\u5730\u7403\u536b\u661f\u4ee5\u901f\u5ea6v\u53d1\u5c04\u540e\uff0c\u53ef\u7ed5\u5730\u7403\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u82e5\u4f7f\u53d1\u5c04\u901f\u5ea6\u53d8\u4e3a2v\uff0c\u5219\u8be5\u536b\u661f\u53ef\u80fd\uff08C\uff09
\u2460\u7ed5\u5730\u7403\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u5468\u671f\u53d8\u5927
\u2461\u7ed5\u5730\u7403\u8fd0\u52a8\uff0c\u8f68\u9053\u53d8\u4e3a\u692d\u5706
\u2462\u4e0d\u7ed5\u5730\u7403\u8fd0\u52a8\uff0c\u6210\u4e3a\u7ed5\u592a\u9633\u8fd0\u52a8\u7684\u4eba\u9020\u536b\u661f\uff1b
\u2463\u6323\u8131\u592a\u9633\u5f15\u529b\u7684\u675f\u7f1a\uff0c\u98de\u5230\u592a\u9633\u7cfb\u4ee5\u5916\u7684\u5b87\u5b99
A.\u2460\u2461 B.\u2461\u2462 C.\u2462\u2463 D.\u2460\u2461\u2462
21.\u6211\u56fd\u5df2\u4e8e2004\u5e74\u542f\u52a8\u201c\u5ae6\u5a25\u7ed5\u6708\u5de5\u7a0b\u201d\uff0c2007\u5e74\u4e4b\u524d\u5c06\u53d1\u5c04\u7ed5\u6708\u98de\u884c\u7684\u98de\u8239.\u5df2\u77e5\u6708\u7403\u534a\u5f84R=1.74\u00d7106m\uff0c\u6708\u7403\u8868\u9762\u7684\u91cd\u529b\u52a0\u901f\u5ea6g=1.62m/s2.\u5982\u679c\u98de\u8239\u5173\u95ed\u53d1\u52a8\u673a\u540e\u7ed5\u6708\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u8ddd\u79bb\u6708\u7403\u8868\u9762\u7684\u9ad8\u5ea6h=2.6\u00d7105m\uff0c\u6c42\u98de\u8239\u901f\u5ea6\u7684\u5927\u5c0f.
\u89e3:\u5728\u6708\u7403\u8868\u9762 \u2460
\u98de\u8239\u5728\u8f68\u9053\u4e0a\u8fd0\u884c\u65f6 \u2461
\u7531\u2460\u2461\u5f0f\u89e3\u5f97: \u2462
\u4ee3\u5165\u5df2\u77e5\u6570\u636e\u5f97:v=1.57\u00d7103m/s
22.\u540c\u6b65\u536b\u661fA\u7684\u8fd0\u884c\u901f\u7387\u4e3av1\uff0c\u5411\u5fc3\u52a0\u901f\u5ea6\u4e3aa1\uff0c\u8fd0\u8f6c\u5468\u671f\u4e3aT1\uff1b\u653e\u5728\u5730\u7403\u8d64\u9053\u4e0a\u7684\u7269\u4f53B\u968f\u5730\u7403\u81ea\u8f6c\u7684\u7ebf\u901f\u5ea6\u4e3av2\uff0c\u5411\u5fc3\u52a0\u901f\u5ea6\u4e3aa2\uff0c\u8fd0\u8f6c\u5468\u671f\u4e3aT2\uff1b\u5728\u8d64\u9053\u5e73\u9762\u4e0a\u7a7a\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\u7684\u8fd1\u5730\u536b\u661fC\u7684\u901f\u7387\u4e3av3\uff0c\u5411\u5fc3\u52a0\u901f\u5ea6\u4e3aa3\uff0c\u8fd0\u8f6c\u5468\u671f\u4e3aT3.\u6bd4\u8f83\u4e0a\u8ff0\u5404\u91cf\u7684\u5927\u5c0f\u5f97\uff08AD\uff09
A.T1=T2>T3 B.v3>v2>v1
C.a1a1>a2
23.\u5df2\u77e5\u4e07\u6709\u5f15\u529b\u5e38\u91cfG\uff0c\u5730\u7403\u534a\u5f84R\uff0c\u6708\u7403\u548c\u5730\u7403\u4e4b\u95f4\u7684\u8ddd\u79bbr\uff0c\u540c\u6b65\u536b\u661f\u8ddd\u5730\u9762\u7684\u9ad8\u5ea6h\uff0c\u6708\u7403\u7ed5\u5730\u7403\u7684\u8fd0\u8f6c\u5468\u671fT1\uff0c\u5730\u7403\u7684\u81ea\u8f6c\u5468\u671fT2\uff0c\u5730\u7403\u8868\u9762\u7684\u91cd\u529b\u52a0\u901f\u5ea6g.\u67d0\u540c\u5b66\u6839\u636e\u4ee5\u4e0a\u6761\u4ef6\uff0c\u63d0\u51fa\u4e00\u79cd\u4f30\u7b97\u5730\u7403\u8d28\u91cfM\u7684\u65b9\u6cd5\uff1a
\u540c\u6b65\u536b\u661f\u7ed5\u5730\u7403\u4f5c\u5706\u5468\u8fd0\u52a8\uff0c\u7531\u5f97
\u2474\u8bf7\u5224\u65ad\u4e0a\u9762\u7684\u7ed3\u679c\u662f\u5426\u6b63\u786e\uff0c\u5e76\u8bf4\u660e\u7406\u7531.\u5982\u4e0d\u6b63\u786e\uff0c\u8bf7\u7ed9\u51fa\u6b63\u786e\u7684\u89e3\u6cd5\u548c\u7ed3\u679c.
\u4e0d\u6b63\u786e.\u5e94\u4e3a\uff0c\u5f97
\u2475\u8bf7\u6839\u636e\u5df2\u77e5\u6761\u4ef6\u518d\u63d0\u51fa\u4e24\u79cd\u4f30\u7b97\u5730\u7403\u8d28\u91cf\u7684\u65b9\u6cd5\u5e76\u89e3\u5f97\u7ed3\u679c\u3002
\u7531\uff0c\u5f97 \u6216\u7531\u5f97
24.\u5df2\u77e5\u5730\u7403\u8d28\u91cf\u5927\u7ea6\u662f\u6708\u7403\u8d28\u91cf\u768481\u500d\uff0c\u5730\u7403\u534a\u5f84\u5927\u7ea6\u662f\u6708\u7403\u534a\u5f84\u76844\u500d.\u4e0d\u8003\u8651\u5730\u7403\u3001\u6708\u7403\u81ea\u8f6c\u7684\u5f71\u54cd\uff0c\u7531\u4ee5\u4e0a\u6570\u636e\u53ef\u63a8\u7b97\u51fa \uff08C\uff09
A.\u5730\u7403\u7684\u5e73\u5747\u5bc6\u5ea6\u4e0e\u6708\u7403\u7684\u5e73\u5747\u5bc6\u5ea6\u4e4b\u6bd4\u7ea6\u4e3a9\u22368
B.\u5730\u7403\u8868\u9762\u91cd\u529b\u52a0\u901f\u5ea6\u4e0e\u6708\u7403\u8868\u9762\u91cd\u529b\u52a0\u901f\u5ea6\u4e4b\u6bd4\u7ea6\u4e3a9\u22364
C.\u9760\u8fd1\u5730\u7403\u8868\u9762\u6cbf\u5706\u8f68\u9053\u8fd0\u884c\u7684\u822a\u5929\u5668\u7684\u5468\u671f\u4e0e\u9760\u8fd1\u6708\u7403\u8868\u9762\u6cbf\u5706\u8f68\u9053\u8fd0\u884c\u7684\u822a\u5929\u5668\u7684\u5468\u671f\u4e4b\u6bd4\u7ea6\u4e3a 8\u22369
D.\u9760\u8fd1\u5730\u7403\u8868\u9762\u6cbf\u5706\u8f68\u9053\u8fd0\u884c\u7684\u822a\u5929\u5668\u7ebf\u901f\u5ea6\u4e0e\u9760\u8fd1\u6708\u7403\u8868\u9762\u6cbf\u5706\u8f68\u9053\u8fd0\u884c\u7684\u822a\u5929\u5668\u7ebf\u901f\u5ea6\u4e4b\u6bd4\u7ea6\u4e3a 81\u22364
25.\u6700\u8fd1\uff0c\u79d1\u5b66\u5bb6\u5728\u671b\u8fdc\u955c\u4e2d\u770b\u5230\u592a\u9633\u7cfb\u5916\u67d0\u4e00\u6052\u661f\u6709\u4e00\u884c\u661f\uff0c\u5e76\u6d4b\u5f97\u5b83\u56f4\u7ed5\u8be5\u6052\u661f\u8fd0\u884c\u4e00\u5468\u6240\u7528\u7684\u65f6\u95f4\u4e3a1200\u5e74\uff0c\u5b83\u4e0e\u8be5\u6052\u661f\u7684\u8ddd\u79bb\u4e3a\u5730\u7403\u5230\u592a\u9633\u8ddd\u79bb\u7684100\u500d\u3002\u5047\u5b9a\u8be5\u884c\u661f\u7ed5\u6052\u661f\u8fd0\u884c\u7684\u8f68\u9053\u548c\u5730\u7403\u7ed5\u592a\u9633\u8fd0\u884c\u7684\u8f68\u9053\u90fd\u662f\u5706\u5468\uff0c\u4ec5\u5229\u7528\u4ee5\u4e0a\u4e24\u4e2a\u6570\u636e\u53ef\u4ee5\u6c42\u51fa\u7684\u91cf\u6709 \uff08AD\uff09
A.\u6052\u661f\u8d28\u91cf\u4e0e\u592a\u9633\u8d28\u91cf\u4e4b\u6bd4
B.\u6052\u661f\u5bc6\u5ea6\u4e0e\u592a\u9633\u5bc6\u5ea6\u4e4b\u6bd4
C.\u884c\u661f\u8d28\u91cf\u4e0e\u5730\u7403\u8d28\u91cf\u4e4b\u6bd4
D.\u884c\u661f\u8fd0\u884c\u901f\u5ea6\u4e0e\u5730\u7403\u8fd0\u884c\u901f\u5ea6\u4e4b\u6bd4
26.\u628a\u706b\u661f\u548c\u5730\u7403\u7ed5\u592a\u9633\u8fd0\u884c\u7684\u8f68\u9053\u89c6\u4e3a\u5706\u5468.\u7531\u706b\u661f\u548c\u5730\u7403\u7ed5\u592a\u9633\u8fd0\u52a8\u7684\u5468\u671f\u4e4b\u6bd4\u53ef\u6c42\u5f97\uff08CD\uff09
A.\u706b\u661f\u548c\u5730\u7403\u7684\u8d28\u91cf\u4e4b\u6bd4
B.\u706b\u661f\u548c\u592a\u9633\u7684\u8d28\u91cf\u4e4b\u6bd4
C.\u706b\u661f\u548c\u5730\u7403\u5230\u592a\u9633\u7684\u8ddd\u79bb\u4e4b\u6bd4
D.\u706b\u661f\u548c\u5730\u7403\u7ed5\u592a\u9633\u8fd0\u884c\u901f\u5ea6\u5927\u5c0f\u4e4b\u6bd4
27.\u5df2\u77e5\u5f15\u529b\u5e38\u91cfG\u3001\u6708\u7403\u4e2d\u5fc3\u5230\u5730\u7403\u4e2d\u5fc3\u7684\u8ddd\u79bbR\u548c\u6708\u7403\u7ed5\u5730\u7403\u8fd0\u884c\u7684\u5468\u671fT.\u4ec5\u5229\u7528\u8fd9\u4e09\u4e2a\u6570\u636e\uff0c\u53ef\u4ee5\u4f30\u7b97\u51fa\u7684\u7269\u7406\u91cf\u6709\uff08BD\uff09
A.\u6708\u7403\u7684\u8d28\u91cf B.\u5730\u7403\u7684\u8d28\u91cf
C.\u5730\u7403\u7684\u534a\u5f84 D.\u6708\u7403\u7ed5\u5730\u7403\u8fd0\u884c\u901f\u5ea6\u7684\u5927\u5c0f
28.\u5730\u7403\u540c\u6b65\u536b\u661f\u79bb\u5730\u5fc3\u8ddd\u79bb\u4e3ar\uff0c\u8fd0\u884c\u901f\u7387\u4e3av1\uff0c\u52a0\u901f\u5ea6\u4e3aa1\uff0c\u5730\u7403\u8d64\u9053\u4e0a\u7684\u7269\u4f53\u968f\u5730\u7403\u81ea\u8f6c\u7684\u5411\u5fc3\u52a0\u901f\u5ea6\u4e3aa2\uff0c\u7b2c\u4e00\u5b87\u5b99\u901f\u5ea6\u4e3av2,\uff0c\u5730\u7403\u534a\u5f84\u4e3aR\uff0c\u5219\uff08B\uff09
\u2460 \uff1d \u2461 = \u2462= \u2463\uff1d
A.\u2460\u2462 B.\u2460\u2463 C.\u2461\u2462 D.\u2461\u2463
29.\u5730\u7403\u8d64\u9053\u4e0a\u7684\u7269\u4f53\u91cd\u529b\u52a0\u901f\u5ea6\u4e3ag,\u7269\u4f53\u5728\u8d64\u9053\u4e0a\u968f\u5730\u7403\u81ea\u8f6c\u7684\u5411\u5fc3\u52a0\u901f\u5ea6\u4e3aa\uff0c\u8981\u4f7f\u8d64\u9053\u4e0a\u7684\u7269\u4f53\u201c\u98d8\u201d\u8d77\u6765\uff0c\u5219\u5730\u7403\u7684\u8f6c\u901f\u5e94\u4e3a\u539f\u6765\u7684\u591a\u5c11\u500d\uff1f
\u89e3:\u8d64\u9053\u4e0a\u7684\u7269\u4f53\u968f\u5730\u7403\u81ea\u8f6c\u65f6\u7684\u5411\u5fc3\u529b\u662f\u4e07\u6709\u5f15\u529b\u548c\u652f\u6301\u529b\u7684\u5408\u529b\u63d0\u4f9b,\u5373:
\u2460
\u5176\u4e2dN=mg \u2461
\u8981\u4f7f\u8d64\u9053\u4e0a\u7684\u7269\u4f53\u98d8\u8d77\u6765,\u5373\u53d8\u4e3a\u8fd1\u5730\u536b\u661f,\u5e94\u6709N=0,\u4e8e\u662f:
\u2462
\u7531\u2460\u3001\u2461\u3001\u2462\u5f97:
30.\u6211\u4eec\u7684\u94f6\u6cb3\u7cfb\u7684\u6052\u661f\u4e2d\u5927\u7ea6\u56db\u5206\u4e4b\u4e00\u662f\u53cc\u661f.\u67d0\u53cc\u661f\u7531\u8d28\u91cf\u4e0d\u7b49\u7684\u661f\u4f53S1\u548cS2\u6784\u6210\uff0c\u4e24\u661f\u5728\u76f8\u4e92\u4e4b\u95f4\u7684\u4e07\u6709\u5f15\u529b\u4f5c\u7528\u4e0b\u7ed5\u4e24\u8005\u8fde\u7ebf\u4e0a\u67d0\u4e00\u5b9a\u70b9C\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8.\u7531\u5929\u6587\u89c2\u5bdf\u6d4b\u5f97\u5176\u8fd0\u52a8\u5468\u671f\u4e3aT\uff0cS1\u5230C\u70b9\u7684\u8ddd\u79bb\u4e3ar1\uff0cS1\u548cS2\u7684\u8ddd\u79bb\u4e3ar\uff0c\u5df2\u77e5\u4e07\u6709\u5f15\u529b\u5e38\u91cf\u4e3aG.\u56e0\u6b64\u53ef\u6c42\u51faS2\u7684\u8d28\u91cf\u4e3a\uff08D\uff09
A. B. C. D.
\u4f60\u8fd9\u95ee\u9898\u95ee\u7684...\u6211\u662f\u771f\u770b\u4e0d\u61c2....
\u4e0d\u8fc7\u6ca1\u4ec0\u4e48\u4e8b\u60c5...\u8fd8\u662f\u5e2e\u4f60\u5206\u6790\u5206\u6790\u5427......
\u54ce......
1.
\u6069...\u536b\u661f\u5728\u8f68\u9053\u4e0a\u8fd0\u52a8...\u9996\u5148\u6ee1\u8db3\u5300\u901f\u5706\u5468\u8fd0\u52a8\u7684\u516c\u5f0f....\u7136\u540e\u5c31\u662f\u5411\u5fc3\u529b=\u4e07\u6709\u5f15\u529b...
\u5217\u51fa\u6765\u5c31\u662f mv^2/R=GMm/R^2
\u6d88\u53bb\u4e24\u8fb9\u7684m..\u628aR\u4e58\u5230\u4e00\u8fb9...\u5c31\u662f....
v^2=GM/R....
\u5176\u4e2dv\u662f\u7ebf\u901f\u5ea6...G\u662f\u4e07\u6709\u5f15\u529b\u5e38\u91cf...M\u662f\u661f\u7403\u8d28\u91cf...R\u662f\u8f68\u9053\u534a\u5f84....
\u6211\u662f\u771f\u4e0d\u77e5\u9053"\u5b83\u4eec\u9075\u5faa\u5176\u4e2d"\u662f\u5565...\u81ea\u5df1\u5206\u6790\u4e0b\u5427.....
2.
\u6069..\u8fd9\u4e2a\u66f4\u626f...
\u5148\u7b97\u51fa\u6765\u6708\u4eae\u5973\u795e\u7684\u7ebf\u901f\u5ea6...
v1=\u6839\u53f7\u4e0b(GM/R1)
\u89d2\u901f\u5ea6w1=v1/R1=\u6839\u53f7\u4e0b(GM/R1^3)
\u5ae6\u5a25\u7684\u7ebf\u901f\u5ea6...
v2=\u6839\u53f7\u4e0b(GM/R2)
\u89d2\u901f\u5ea6w2=v2/R2=\u6839\u53f7\u4e0b(GM/R2^3)
\u7136\u540e\u76f8\u9047\u9700\u8981\u7684\u65f6\u95f4\u5c31\u662f...\u4e24\u536b\u661f\u5dee\u7684\u89d2\u5ea6\u5dee...\u9664\u4ee5(w1-w2)\u7684\u7edd\u5bf9\u503c\u5c31\u6210\u4e86........(\u5f53\u7136\u4e86....\u89d2\u5ea6\u5dee\u662f\u6162\u7684\u90a3\u4e2a\u51cf\u5feb\u7684\u90a3\u4e2a.....\u5dee\u7684\u89d2\u5ea6....)
\u662f\u591a\u5c11\u81ea\u5df1\u770b\u56fe\u5427.......
\u54e6...\u7ed9\u4e86T1\u548cT2\u7684\u8bdd...\u53ef\u4ee5\u76f4\u63a5\u7528\u8fd9\u4e2a\u8868\u793a.....\u9700\u8981\u7684\u65f6\u95f4\u5c31\u662f\u5dee\u7684\u89d2\u5ea6...\u9664\u4ee5(2\u03c0/T1-2\u03c0/T2)\u7684\u7edd\u5bf9\u503c....
3.
\u6069....\u7ed9\u4e86T1\u548cT2.....\u6240\u4ee5\u89d2\u901f\u5ea6w1=2\u03c0/T1...
\u518d\u6839\u636e\u521a\u624d\u7b97\u7684...
w1=v1/R1=\u6839\u53f7\u4e0b(GM/R1^3)
\u4e24\u4e2a\u5f0f\u5b50\u76f8\u7b49...\u518d\u6574\u7406\u4e0b...
M=4\u03c0^2R1^3/(GT1^2)
\u7136\u540e...\u6708\u7403\u5bc6\u5ea6=M/V=M/(4/3\u03c0R^3)\u5c31\u7b49\u4e8e...
4\u03c0^2R1^3/(GT1^2)/(4/3\u03c0R^3)
=3\u03c0R1^3/(GT1^2R^3)
\u5b8c\u4e86....
飞船舱内物体处于完全失重状态，即人只受万有引力（重力）作用，
所以人对站台的压力N=0，故A错误、B正确．
CD、忽略地球的自转，万有引力等于重力：
在地球表面处：mg=G（Mm/R2）
则GM=gR2，
宇宙飞船：m′a=G（Mm′/r2）
，
解得a＝（R2/r2）g，故C错误，D正确；
故选：BD．
同学你好！
此时人处于完全失重状态，对站台压力为零。人在绕地球做匀速圆周运动，万有引力提供向心力，向心加速度很容易求得，这里打公式很不方便，我就不单独列出，答案为D选项。
如果没有讲清楚可以追问，如果已经明白了，麻烦采纳一下，谢谢！
选A吧。。。。
绛旓細瑙ｏ細AB銆佸畤瀹欓鑸圭粫鍦板績鍋氬寑閫熷渾鍛ㄨ繍鍔紝椋炶埞鑸卞唴鐗╀綋澶勪簬瀹屽叏澶遍噸鐘舵侊紝鍗充汉鍙彈涓囨湁寮曞姏锛堥噸鍔涳級浣滅敤锛屾墍浠ヤ汉瀵圭珯鍙扮殑鍘嬪姏N=0锛屾晠A閿欒銆丅姝ｇ‘锛嶤D銆佸拷鐣ュ湴鐞冪殑鑷浆锛屼竾鏈夊紩鍔绛変簬閲嶅姏锛氬湪鍦扮悆琛ㄩ潰澶勶細mg=G锛圡m/R2锛夊垯GM=gR2锛屽畤瀹欓鑸癸細m鈥瞐=G锛圡m鈥/r2锛夛紝瑙ｅ緱a锛濓紙R2/r2锛塯锛屾晠C閿欒锛...
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绛旓細1 mg=GmM/r^2 g=GM/r^2 g涓庡埌鍦板績鐨勮窛绂诲钩鏂规垚鍙嶆瘮銆俫'=g/16 閲嶅姏锛欸'=mg'=1800*(10/16)=1125N---鍙杇=10m/s^2 2 GmM/r^2=m(2蟺/T)^2*r r={(GM*T^2)/(4蟺^2)}^(1/3)浠ｅ叆锛岀畻寰楋細r鈮7.07*10^7m---鍗槦涓庡湴鐞冧腑蹇冪殑璺濈銆侳=GmM/r^2 =GmM*r^(-2)=GmM*...
绛旓細瑙ｆ瀽锛氳澶槼璐ㄩ噺M锛屽湴鐞冭川閲弇锛屾湀鐞冭川閲弇0锛屾棩鍦伴棿璺濈涓篟锛屾湀鍦伴棿璺濈涓簉锛屾棩鏈堜箣闂磋窛绂昏繎浼肩瓑浜嶳锛屽湴鐞冪粫澶槼鐨勫懆鏈熶负T绾︿负360澶╋紝鏈堢悆缁曞湴鐞冪殑鍛ㄦ湡涓簍=27澶┿傚鍦扮悆缁曠潃澶槼杞姩锛岀敱涓囨湁寮曞姏瀹氬緥锛欸MmR2=m4蟺2RT2锛屽悓鐞嗗鏈堢悆缁曠潃鍦扮悆杞姩锛欸mm0r2=m04蟺2rt2锛屽垯澶槼璐ㄩ噺涓庡湴鐞冭川閲忎箣姣斾负...
绛旓細涓囨湁寮曞姏鐨勫叕寮忎负F=GMm/r^2 鍥犱负鐗╀綋楗剁潃鍦扮悆鍋氬寑閫熷渾鍛ㄨ繍鍔 鎵浠ヤ竾鏈夊紩鍔涚殑鍏紡鍙互鍙樻垚 F=GMm/r^2=mv^2/r=mw^2r=m(2pai/T)^2r 鍥犳 1.姝ｇ‘ 鐗╀綋鍙楀埌鐨勪竾鏈夊紩鍔涗腑鐨勯噸鍔涘拰瀹冨彈鍒扮殑鍚戝績鍔涚浉浜掑钩琛★紙缁濆娌℃湁浠涔堢蹇冨姏 浠ュ墠鎴戜滑鐗╃悊鑰佸笀杩樼壒鍒己璋 鍙兘璇村悜蹇冨姏鐨勫ぇ灏忎笉澶熷ぇ 鐗╀綋鎵嶅仛...
绛旓細涓囨湁寮曞姏鏄繚瀹堝姏锛岄鑸逛粠鍦扮悆琛ㄩ潰鍒版棤闄愯繙澶勫厠鏈嶄竾鏈夊紩鍔涘仛鍔熶负锛歸1=w=GmM/r銆傞鑸逛粠璺濈鍦扮悆琛ㄩ潰鍒版棤闄愯繙澶勫厠鏈嶄竾鏈夊紩鍔涘仛鍔熶负锛歸2=GmM/锛坮+h锛夐鑸瑰湪鍦嗚建閬撲笂鐨勯熷害锛歏^2/(r+h)=GM/(r+h)^2锛屾晠V^2=GM/(r+h)灏嗚川閲忎负m鐨勯鑸逛粠鍦伴潰鍙戝皠鍒拌窛绂荤鍦伴潰h鐨勫渾杞ㄩ亾涓婄伀绠嚦灏戣瀵归鑸瑰仛鍔...
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绛旓細鍚戝績鍔涘叕寮忥細F = mv^2/R = mRw^2 = mv w 鍚戝績鍔犻熷害锛歛 = v^2/R = Rw^2 = v w 鍗槦杩愬姩锛屼竾鏈夊紩鍔鎻愪緵鍚戝績鍔涳紝甯哥敤鐨勭瓑寮忥細GMm / R^2 = mv^2/R = mRw^2 = mR(2pi/T)^2 鏍规嵁杩欎袱涓瓑寮忓彲寰楋細閫熷害鍏紡锛歏 = 鏍瑰彿GM/R 澶╀綋瀵嗗害P = 3pi/GT^2 杩戝湴闈㈡椂锛屼竾鏈...
绛旓細绛旀閫塁
