2 Two protons in an atomic nucleus are typically seperated by a distance
3 of $r = 2.00\E{-15}\U{m}$. The electric repulsion force $F$ between
4 the protons is huge, but the attractive nuclear force is even stronger
5 and keeps the nucleus from bursting apart. What is the magnitude of
7 \end{problem*} % problem 19.4
16 label.bot("r", draw_length(A, B, 10pt));
34 label.top("F", draw_force(A, B, 20pt));
41 F = k_e \frac{q^2}{r^2}
42 = 8.99\E{9}\U{N$\cdot$m$^2$/C$^2$} \left(\frac{1.60\E{-19}\U{C}}{2.00\E{-15}\U{m}}\right)^2