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Physics
Physics
Problem
Which of the following expressions correctly gives the mass
m
m
m
of a substance in terms of its density
ρ
\rho
ρ
and volume
V
V
V
? a)
m
=
1
2
ρ
V
m = \dfrac{1}{2}\rho V
m
=
2
1
ρ
V
b)
m
=
ρ
V
m = \rho V
m
=
ρ
V
c)
m
=
2
ρ
V
m = 2\rho V
m
=
2
ρ
V
d)
m
=
4
3
ρ
V
m = \dfrac{4}{3}\rho V
m
=
3
4
ρ
V
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