  We calculate microscopically the viscous friction coefficient and the
effective mass of domain walls separating regions of opposite chirality in
p-wave superconductors with k_x\pm ik_y order parameter. The domain wall
viscosity and inertia are determined by the transitions between different
Bogoliubov quasiparticle states induced by the domain wall motion. As a
by-product, we present a detailed analysis of the quasiparticle spectrum, both
bound and scattering, in the presence of a general domain wall with an
arbitrary phase difference between the domains.
