..., Kenneth. Physics Fourth Edition. NY: John Wiley and Sons Inc ., 1998: 591. lists the resitivity of iron as 97 nanoOhm meters...
3 Answers · Science & Mathematics · 11/02/2008
I don't remember what exactly the formula stands for (wave propagation?), but it seems like this: if f is close to v and f>v, then f/v - v/f = (f-v)(f+v)/vf, when f+v aproximates to 2f we get equation (a). I hope this helps.
1 Answers · Science & Mathematics · 17/10/2011