gc textbook chapter 8 Rotational Motion (id: 2450cdf30)

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本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[填空题]
A laser beam is directed at the Moon, 380,000 km fromylj+yola7g 3u8qg,7 v3*+hpc py )xpfk 7 ygu; Earth. Tp tcu*b49j pb6he beam diverges at apu9 pbc4j b*t6n angle $\theta$ (Fig. 8–37) of $1.4\times10^{-5}$ rad What diameter spot will it make on the Moon?    m

参考答案: 5300±2%


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