EXAMPLE QUESTION: Calculate the mass per unit length of the wire, μ, given by μ = g /(2fG)^2 where g = 9.81 N kg–1 and f = 50 Hz. For example here is it mass per unit length and so would it be kg/m? It kg/m the same as kgm^-1. But then how do I identify the units like kgm^-2 like how would they be written, mass per squared unit length? I'm a bit confused. Also, if the result was 0.0072 kg/m Could I say it is 7.2 x10^-3 kg/m or can I convert it to something like g/m?