当人造地球卫星绕地球做匀速圆周运动时，下列说法正确是 A．在同一轨道上，卫星质量越大，运动速度越
\u5173\u4e8e\u7ed5\u5730\u7403\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\u7684\u4eba\u9020\u5730\u7403\u536b\u661f\uff0c\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f\uff08\u3000\u3000\uff09 A\uff0e\u8f68\u9053\u534a\u5f84\u8d8a\u5927\uff0c\u901f\u5ea6\u8d8a\u5927 B\u4eba\u9020\u5730\u7403\u536b\u661f\u7ed5\u5730\u7403\u505a\u5300\u901f\u5706\u5468\u8fd0\u52a8\uff0c\u7531\u5730\u7403\u7684\u4e07\u6709\u5f15\u529b\u63d0\u4f9b\u5411\u5fc3\u529b\uff0c\u5219\u6709 G Mm r 2 =m v 2 r \u5f97v= GM r \uff0e\u5f0f\u4e2dM\u662f\u5730\u7403\u7684\u8d28\u91cf\uff0cr\u662f\u536b\u661f\u7684\u8f68\u9053\u534a\u5f84\uff0c\u53ef\u89c1\u536b\u661f\u7684\u901f\u5ea6\u4e0e\u536b\u661f\u7684\u8d28\u91cfm\u65e0\u5173\uff0c\u968f\u7740\u8f68\u9053\u534a\u5f84\u7684\u589e\u5927\u800c\u51cf\u5c0f\uff0c\u51cf\u5c0f\u800c\u589e\u5927\uff0e\u6545B\u6b63\u786e\uff0cACD\u9519\u8bef\uff0e\u6545\u9009B
D
\u7b2c\u4e8c\u5b87\u5b99\u901f\u5ea6\u662f\u5730\u7403\u7684\u9003\u9038\u901f\u5ea6
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