Предмет: Физика, автор: Незнаеч

Во сколько раз изменится кинетическая энергия, если его скорость уменьшится в 3 раза? Ответьте очень надо!!!

Ответы

Автор ответа: UmbertoVargas

• формула кинетической энергии Ek = (m v²)/2

○ соответственно, Ek ~ v²

• ответ: уменьшится в 9 раз

Автор ответа: Незнаеч

Спасибо большое, и за формулу тоже

Автор ответа: ЮрВас

E=mv2/2 Энерг пропорциональна КВАДРАТУ скорости тела. Раз скор УМЕНЬШИТСЯ в 3 раза, значит энерг УМЕНЬШ в 9 раз.

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HOBBIES
Hobbies differ like tastes. If you have chosen a hobby according to your character and taste you are lucky because your life becomes more interesting.
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Almost everyone collects something at some period in his life: stamps, coins, matchboxes, books, records, postcards, toys, watches. Some collections have no real value. Others become so large and so valuable that they are housed in museums and galleries. Many world-famous collections started in a small way with one or two items. People with a good deal of money often collect paintings, rare books and other art objects. Often such private collections are given to museums, libraries and public galleries so that others might take pleasure in seeing them.
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