Question 78697
I'm not sure how to read your expression.  You put 1 divided by, and then a bunch of stuff, so I'm not sure when to stop dividing.

One way is this, which sort of seems more normal to me


{{{ 550000 = (1/(2 pi)) * sqrt( 0.000000000010 * c )  }}}

{{{  550000 * 2 pi= sqrt ( 0.000000000010 * c ) }}}

{{{  (550000 * 2 pi)^2 = 0.000000000010 * c }}}

{{{  (550000 * 2 pi)^2 / (0.000000000010) =  c }}}

{{{  (550000 * 2 pi)^2 / (0.000000000010) =  c }}}

It may be helpful to see the scientific notation for these numerical constants:

{{{  (5.5 * 10^5 * 2 PI)^2 / (10^-11) =  c }}}

{{{ c = 10^11 * (5.5 * 10^5 * 2 pi)^2 }}}

{{{ c = 10^21 * 11^2 * pi^2 }}}

{{{ c = 1.194 * 10^24 }}} approximately


here's the other possibility


{{{ 550000 = 1/(2 pi * sqrt( 0.000000000010 * c ) )  }}}

{{{ sqrt( 10^-11 * c) = 1 / (2 pi * 550000) }}}

{{{ 10^-22 c = 1 / (4 pi ^2 * 5.5^2 * 10^10) }}}

{{{ c = 10^12 / (pi ^2 * 11^2) }}}

{{{ c = 8.374 * 10^8 }}} approximately.