Jawabanmu

2014-04-11T21:40:34+07:00
M=800mg=8 10ˉ⁴ kg (Vrms=√(v rata-rata))
Vrms = √(3P/ρ)
750 = √(3 10⁵/ρ)
750² =3 10⁵/ρ
ρ = 3 10⁵/562500
ρ=0,533
ρ = m/V
V=m/ρ
V=8 10ˉ⁴/0,533
V=1,5 10ˉ³ m³