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A substance has density ρ, mass m, and volume V. If the volume is tripled, what is the new mass?
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Answers ( )
Since the density of the substance is ρ (rho),
==> every cm³ of this substance has ρ grams of mass.
Then
==> V cm³ of it has ρV grams of mass. That’s ‘ m ‘.
and
==> 3V cm³ of it has 3ρV grams of mass. That’s ‘ 3m ‘.