In determining the answer to the question below, you do not know the value of pi and cannot use the formula for the volume of a sphere, or the formula for the area of a circle.
I have a solid steel sphere, 600mm in diameter and a machine that can convert the sphere into a single length of wire, with no wastage of material.
The produced wire has the same density as the original sphere.
I have set the machine to produce a wire of 1mm in diameter - exactly how long is the 1mm diameter wire, produced from the 600mm diameter steel sphere?
In giving your answer show your working.
I have a solid steel sphere, 600mm in diameter and a machine that can convert the sphere into a single length of wire, with no wastage of material.
The produced wire has the same density as the original sphere.
I have set the machine to produce a wire of 1mm in diameter - exactly how long is the 1mm diameter wire, produced from the 600mm diameter steel sphere?
In giving your answer show your working.