Răspuns :
S este densitatea
L=3m
l=2m
h=50cm=0,5m
S nisip = [tex] \frac{1.5g}{ {cm}^{3} } = \frac{1.5g \times 1000000}{1cm^{3} \times 1000000} = \frac{1500kg}{1m^{3}} [/tex]
V groapa = L * l * h = 3m * 2m * 0,5m = 3m^3
m = S * V =[tex] \frac{1500kg}{1m^{3}} \times 3m ^{3} = 1500kg \times 3 = 4500kg[/tex]
Poti sa imi dai coroana?
L=3m
l=2m
h=50cm=0,5m
S nisip = [tex] \frac{1.5g}{ {cm}^{3} } = \frac{1.5g \times 1000000}{1cm^{3} \times 1000000} = \frac{1500kg}{1m^{3}} [/tex]
V groapa = L * l * h = 3m * 2m * 0,5m = 3m^3
m = S * V =[tex] \frac{1500kg}{1m^{3}} \times 3m ^{3} = 1500kg \times 3 = 4500kg[/tex]
Poti sa imi dai coroana?
h=50 cm=0,5 m
q=m/V=>m=qV
q=1,5 g/cm^3=1500 kg/m^3
V=lLh=3•2•0,5=3 m^3
m=qV=1500•3=4500 kg
q=m/V=>m=qV
q=1,5 g/cm^3=1500 kg/m^3
V=lLh=3•2•0,5=3 m^3
m=qV=1500•3=4500 kg