Add illustration for Serway and Jewett v8's problem 23.17.

diff --git a/latex/problems/Serway_and_Jewett_8/problem23.17.tex b/latex/problems/Serway_and_Jewett_8/problem23.17.tex
index aea6dc235d5eec9c210695998a23636114cb6a85..375804feaadda25ed5cbc7a47566ff8a460e53f1 100644 (file)
--- a/latex/problems/Serway_and_Jewett_8/problem23.17.tex
+++ b/latex/problems/Serway_and_Jewett_8/problem23.17.tex
@@ -3,6 +3,24 @@ A point charge $+2Q$ is at the origin and a point charge $-Q$ is
 located along the $x$ axis at $x=d$ as in Figure P23.17.  Find a
 symbolic expression for the net force on a third point charge $+Q$
 located along the $y$ axis at $y=d$.
+\begin{center}
+\begin{asy}
+import Mechanics;
+import ElectroMag;
+
+real u = 1.5cm;
+
+Charge a = pCharge((0,0), 2, L="$2Q$");
+Charge b = nCharge((u,0), -1, L="$-Q$");
+Charge c = pCharge((0,u), 1, L="$Q$");
+Distance dab = Distance(
+    a.center, b.center, offset=0.5u, scale=u, L="$d$");
+Distance dac = Distance(
+    a.center, c.center, offset=-0.5u, scale=u, L="$d$");
+draw_ijhat((0,0));
+a.draw(); b.draw(); c.draw(); dab.draw(); dac.draw();
+\end{asy}
+\end{center}
 \end{problem*}
 
 \begin{solution}