r=.10,m=1.6*10^-27,f=2.5*10^-12, use formula f=mrww,calculate w?

Answer 1

Assume you are doing centripetal force:
F = m Ac = m R omega^2
2.5*10^-12 Newtons = 1.6*10^-27 Kg * 0.10 meters * omega^2 radians^2/Second^2
so
omega^2 = (2.5/0.16) 10^15

Answer 2

I guess maybe that is a proton?