Solution 20.4c
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(New page: No change because the mass cancels out in all of the equations. For example in part b): <math>\begin{align} & mr{{\omega }^{2}}=\mu mg \\ & r=\frac{\mu g}{{{\omega }^{2}}} \end{align}<...)
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No change because the mass cancels out in all of the equations. For example in part b):
\displaystyle \begin{align} & mr{{\omega }^{2}}=\mu mg \\ & r=\frac{\mu g}{{{\omega }^{2}}} \end{align}
