v=140*50*0,4= 2800 cm3
d= 2,5 g/cm3
Zastosuję wzór: m=d*v
m=2800*2,5=7 000g= 7kg
V= 140*50*0,4= 2800cm3
d= 2,5g/cm3
m= V*d
m=2800*2,5=
m=7000g=7kg
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v=140*50*0,4= 2800 cm3
d= 2,5 g/cm3
Zastosuję wzór: m=d*v
m=2800*2,5=7 000g= 7kg
V= 140*50*0,4= 2800cm3
d= 2,5g/cm3
m= V*d
m=2800*2,5=
m=7000g=7kg