41. How long does a laser beam take to travel from the Earth to a reflector...
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41. • How long does a laser beam take to travel from the Earth to a reflector on the Moon and back?
Take the distance from the Earth to the Moon to be 2.4 × 105 mi. (This experiment was done when the Apollo flights of the early 1970s left laser reflectors on the lunar surface.)
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Related Book For
College Physics Essentials Electricity And Magnetism Optics Modern Physics Volume Two
ISBN: 9781032337272
8th Edition
Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
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