本题目来源于试卷: Physics Unit2: Kinematics One Dimensional Motion，类别为 通用国际物理
[单选题]
A ly (light year) is the distance that light trav cw ams3k48; l -vo.1vetvqql(els in one year. The speed ofw ;nzdu;nn4m) light is ;n;dn u4z) mwn$3.00 \times 10^8 \; m/s$. How many miles are there in a light year? (1 mi = 1609 m, 1 yr = 365 d.)
A. $9.46 \times 10^{12} \; mi$
B. $9.46 \times 10^{15} \; mi$
C. $5.88 \times 10^{12} \; mi$
D. $5.88 \times 10^{15} \; mi$
参考答案: C
本题详细解析:
暂无
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