Answer: Hold a pencil in front of your eye at a position

Chapter 1, Problem 48GP

(choose chapter or problem)

Hold a pencil in front of your eye at a position where its blunt end just blocks out the Moon (Fig. 1–19). Make appropriate measurements to estimate the diameter of the Moon, given that the Earth–Moon distance is \(3.8\times10^5\mathrm{\ km}\).

FIGURE 1-19 Problem 48. How big is the Moon?

Equation Transcription:

Text Transcription:

3.8x10^{5} km

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