Question

A cubic cm of gold is drawn into a wire 0.1 mm in diameter, find the length of the wire​

Answer 1

Answer:

127.32 meters

Step-by-step explanation:

volume of gold after drawn into a wire = πr²h = 1 cm³

diameter = 0.1 mm = >radius = 0.05mm = 0.005 cm

volume = πr²h =1

π*(0.005)²*h = 1

h= 1/(π*(0.005)²) = 1/(π*0.000025) = 12732 cm = 127.32 meters