To find the density of a sphere with a known radius and mass:
Count the volume of a sphere, using the equation volume = (4/3) × π × r3
In our case: volume = (4/3) × π × 33 = 113.1 cu in (cubic inches)
Then let's consider the formula for density, which is density = mass/volume.
We've already got all the data needed!
Let's put that into practice. density = 0.5 lb / 113.1 cu in = 0.004421 lb/cu in
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