A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine `("in " mm^3)` is needed to fill this capsule?
Diameter of capsule =3.5mm
Radius =`3.5/2 =1.75mm`
Volume of spherical capsule =`4/3πr^3`
∴ `22.46mm^3`of medicine is required.
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