Kepler's Third Law, which you derived on your exam as well as on an assignment: r1 the period squared equals four pi squared times r1 plus r2 to the power three.
开普勒第三定律，就是你们在考试中和,作业中推导出的：,周期的平方等于，4π的平方乘以1,加上r2的三次方。
Kepler's Third Law, which you derived on your exam as well as on an assignment: r1 the period squared equals four pi squared times r1 plus r2 to the power three.
开普勒第三定律，就是你们在考试中和,作业中推导出的：,周期的平方等于，4π的平方乘以1,加上r2的三次方。
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