本题目来源于试卷: Physics Unit8: Rotational Motion,类别为 Generic Physics
[单选题]
The Earth orbits the Sun in an ell:en4af( 9 h*keb e ct,x+lu.noapb5*hiptical orbibiap v7 +*,gzenz -vhxex4k*0td uq,-t. Ignore any friction which may be present. Whaq kpebvu,x*zet zi+h,*-xv47 dng0-at happens over time to the Earth's angular momentum about the Sun?
A. It continually increases.
B. It continually decreases.
C. It remains constant.
D. It increases during some parts of the orbit, and decreases during others.
参考答案: C
本题详细解析:
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