I need some help on how to start this problem and I think I can work it out.(adsbygoogle = window.adsbygoogle || []).push({});

A laser beam is directed at the moon 380,000 km from earth. The beam diverges at an angle of 1.8 x 10-5 rad. How large a spot will it make on the moon?

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# Homework Help: Can't get started

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