zadanie1. oblicz mase klocka drewnianego (0,80 g/cm ) o obietosci V=7cm . mase podaj w gramach.
zadanie2. masa brylki soli kamiennej jest rowna 12g, oblicz objetosc tej brylki . (gestosc soli 2.16g/cm
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m= ro V
m= 0,8 x 7
m= 5,6g
V=m/ro
V=12/2,16
V=5,55cm*3