A particle of mass kg is attached to the -cm mark of a meterstick of mass kg. The meterstick rotates on the surface of a frictionless, horizontal table with an angular speed of rad/s. Calculate the angular momentum of the system when the stick is pivoted about an axis (a) perpendicular to the table through the 50.0-cm mark and (b) perpendicular to the table through the 0-cm mark.