What are Units and Why Are They Important?
We use conversion factors to convert one unit to another unit for the same dimension.
For example, let's convert a density of
1 g/cm3 to units of lbm/ft3.
A numerical result without units is not acceptable unless
the result is dimensionless.
Units can also guide you to the solution of a problem or help you determine if your solution is correct.
If the units are not correct, then your solution probably has an error.
grams (g) or pounds mass (lbm)
Common units for mass:
Common units for density:
or pounds mass per cubic foot (lbm/ft3)
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