What is the radius of earth

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Q. Assume that, as lying on a beach near the equator watching the Sun set over a calm ocean, you start a stopwatch just as the top of the Sun disappears. You after that stand, elevating your eyes by a height H = 1.90 m, and stop the watch when the top of Sun again disappears. If the elapsed time is t = 11.8 s, what is the radius r of Earth?

Reference no: EM1371157

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