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If the mass of an object is 4 kg while its volume is 20 m3, what would its density be?

Answer 1

Natalie Anton

#2 xx 10^(-4) g/(cm^3)#

The density equation is:

#rho = m/V#

Plug in known values, if your answer is in units of #(kg)/(m^3)#:

#rho = (4kg)/(20m^3) = 0.2(kg)/(m^3)#

A more conventional unit for density is #g/(cm^3)#. The conversion to this is:

#0.2(kg)/(m^3)((10^3g)/(1kg))((1m^3)/(100^3cm^3)) = 2 xx 10^(-4) g/(cm^3)#

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Answer 2

Owen Ambrose

Density is mass divided by volume, so the density of the object would be 0.2 kg/m³.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.