Fy1 Heureka Kap 12 Fysik 1 Kapitel 12 Relativitet - tidsdilatation, längdkontraktion gammafaktor
relativity time dilatation length contraction relativitet tidsdilatation längdkontraktion
- Целевая группа (возраст)
- 3 – 19+
- Язык
- Swedish / Svenska
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