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Tuesday, 22 november 2011

Eprubeta si mingea de ping-pong

Proposed by AnitaOffline
(8 comments)5.316 times displayed

Avem o eprubeta in pozitie verticala. In ea o minge de ping pong. Diametrul tubului este cu 2 mm mai mare decat cel al mingii.
Este interzisa:
- atingerea eprubetei
- atingerea mingii
- folosirea de instrumente pentru scoaterea mingii

Se invita un prieten pentru a scoate mingea din eprubeta. Cum trebuie sa procedeze?


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