przelicz 20 cm/min=...m/s 80 km/min=...m/s 1000mm3=.....km3
12m/s 4800000m/s 1km3
20cm/min=12m/s80km/min=1333,3m/s
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12m/s 4800000m/s 1km3
20cm/min=12m/s
80km/min=1333,3m/s