本题目来源于试卷: gc physics textbook chapter 5 problems,类别为 通用国际物理
[问答题]
Would it require less speed to lack us5 wb9,kriss t0-5unch a satellite (a) toward the e4ulof)sb/ 88t3xk q4pkkv th 8ast or (b) toward the west? Consider the Earth’/potxfqkk88s )4u hlk vb43 8ts rotation direction.
参考答案: In order to orbit, a satellite must reach an orbital speed relative to the center of the Earth. Since the satellite is already moving eastward when launched (due to the rotation speed at the surface of the Earth), it requires less additional speed to launch it east to obtain the final orbital speed.
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