а=1,3м
b=1,75м
с=0,5см=0,005м
m-?
m= p V; p =2500 кг/м³;
V=abc → m= p * abc = 2500 * 1,3*1,75*0,005= 28,4375 кг.
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а=1,3м
b=1,75м
с=0,5см=0,005м
m-?
m= p V; p =2500 кг/м³;
V=abc → m= p * abc = 2500 * 1,3*1,75*0,005= 28,4375 кг.