P-wave
= P wave
{c}
{wiki}
A P-wave is longitudinal, carries nonzero dilatation, and has speed $c_P=\sqrt{(\lambda+2\mu)/\rho}$ in an isotropic solid.
= P wave
{c}
{wiki}
A P-wave is longitudinal, carries nonzero dilatation, and has speed $c_P=\sqrt{(\lambda+2\mu)/\rho}$ in an isotropic solid.