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How is the standard unit of the meter defined? By the distance light travels in one second By the length of a bar of metal
How is the standard unit of the "meter" defined? By the distance light travels in one second By the length of a bar of metal carefully preserved in a research institute By the circumference of the Earth (a kilometer is 1/10,000 of the distance from the pole to the equator). By the radius of the hydrogen atom
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Physics Olympiad - Basic To Advanced Exercises
Authors: The Committee Of Japan Physics Olympiad Japan
1st Edition
981455667X, 9789814556675
