k-w relation

[ppotseluev]

https://www.wolframalpha.com/input?i=k+%3D+%282+*+0.0005%29+%2F+%282w+-+1%29%2C+w+from+0.52+to+0.6

https://www.wolframalpha.com/input?i=w*n*t*k+-+%281-w%29*n*t*k+-+n*t*f+%3D+p%2C+w%3D0.59%2C+f%3D0.001%2C+t+%3D+250%2C+k+%3D0.04%2C+p+%3D+1000%2C+solve+n