本题目来源于试卷: Physics Unit33: Astrophysics and Cosmology，类别为 Generic Physics
[单选题]
Estimate the speed of a galhajoidyo-6;, p+ ww 4eyor( d0axy that is 10 ynr xk:co(pkpvjz;v9r 3b71(hzqu0dc, jt 1- billion light-years away.
A. $0.1 \; c$
B. $0.3 \; c$
C. $0.5 \; c$
D. $0.7 \; c$
参考答案: C
本题详细解析:
暂无
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Post time 2024-1-22 00:41:59