Question 246081
Solve for r:
{{{w = Cr^(-2)}}} Rewrite this with a positive exponent for r.
{{{w = C/r^2}}} Multiply both sides by {{{r^2}}}.
{{{w*r^2 = C}}} Divide both sides by w.
{{{r^2 = C/w}}} Finally, take the square root of both sides.
{{{r = sqrt(C/w)}}}