In the figure an electric dipole swings from an initial orientation i(θi = 22.4∘) to a final orientation f(θf = 22.4∘) in a uniform external electric field E→. The electric dipole moment is 2.72×10−27 C⋅m; the field magnitude is 3.43×106 N/C. What is the change in the dipole's potential energy? Number Units