Oblicz masę sześcianu o krawędzi 2 cm wykonanego z miedzi wiedząc że gęstość miedzi wynosi 8,93 g na cm sześcienny
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d = 8,93g/cm³
a = 2cm
V = a³
V = (2cm)³ = 8cm³
m = dV
m = 8cm³ x 8,93g/cm³ = 71,44g
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2cmx2cmx2cm=8cm3
1cm3 - 8,93g
8cm3 - x
x=8*8,93 = 71,44g