A spherical conductor has a radius of 4mm. What is the volume of this conductor in liter? Note: v= 4/3 pie exponent of 3 where r = radius
PI, not pie!!
just plug in your value for r:
4/3 π * 4^3 = 256/3 π mm^3
But 1L = 1000cm^3 = 10^6 mm^3
so, v = 256π/3000 = 0.268L
or, you can convert 4mm = 0.4cm first, and then
v = 4/3 π * .4^3 = 0.268L