Fix \U{\m} -> \U{m} in Serway and Jewett v4's problem28.25.tex.

diff --git a/latex/problems/Serway_and_Jewett_4/problem28.25.tex b/latex/problems/Serway_and_Jewett_4/problem28.25.tex
index 16b3503eabb36fab9d5e2c062d75c94bb57b8bad..44479c0b927236c9be335c8324735d411d861e02 100644 (file)
--- a/latex/problems/Serway_and_Jewett_4/problem28.25.tex
+++ b/latex/problems/Serway_and_Jewett_4/problem28.25.tex
@@ -1,7 +1,7 @@
 \begin{problem*}{28.25} % diffraction, resolution
 The resolving power of a microscope depends on the wavelength of light
 used.  If one wished to ``see'' an atom, a resolution of approximately
-$1.00\E{-11}\U{\m}$ would be required.  \Part{a} If electrons are used
+$1.00\E{-11}\U{m}$ would be required.  \Part{a} If electrons are used
 (in an electron microscope), what minimum kinetic energy is required
 for the electrons?  \Part{b} If photons are used, what minimum photon
 energy is needed to obtain the required resolution?