A ball screw with a 6-mm pitch drives a worktable in an NC positioning system. The screw is powered by a stepping motor with 48 step angles. The worktable is programmed to move a distance of 200 mm from its present position at a travel speed of 330 mm/min. Determine the (a) number of pulses to move the table the specified distance (in pulses), (b) motor speed (in rev/min), and (c) pulse rate to achieve the desired table speed (in Hz).