yeomans410
12.12.2019 •
Physics
Мальчик вышёл из школы и пошёл домой. первый километр пути он прошёл за 0,2 ч,а оставшиеся 2 км его подвёз на велосипеде друг,затратив на это 0,1 ч. с какой средней скоростью двишался мальчик?
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Ответ:
Relative mass of electron is 1/1840