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Showing posts with label работа. Show all posts
Showing posts with label работа. Show all posts

Работа на сила,мощност,кинетична енергия, Връзка между работа и кинетична енергия

Written By Unknown on Wednesday, 28 October 2009 | 01:01

Публикувано от Unknown в 01:01 0 коментара
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