December 2018 1 5 Report
Ktore z dwoch cial o wymiarach 20x10x5 wywiera wieksze cisnienie na podloze i ile razy? Cialo zbudowane sa z drewna, a drugie z cegly.

gestosc drewna= 700kg/m3
gestosc cegly 1500kg/m3
Na teraz pls. Daje naj

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