A spherical object has a radius of 5 cm and a mass
of 7 kg. What is its density?
13,369.0
Density = mass / volume
Volume of a sphere is 4/3 pi r3.
Density = 7 kg / (4/3 pi (5 / 100)3 )
What is the mass of water contained in a glass
with a volume of 785.4 cm3?
785.4 g
Density = mass / volume, so mass =
density * volume
Mass = (1 g/cm3) * (785.4 cm3)
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