41. It is rotating rapidly with a projected rotational velocity of 150 km s " 1. 42. It is rotating rapidly with a projected rotational velocity of 19 km s " 1. 43. Pulse usually relates to a magnet and sensor which measures the rotational velocity of the crank. 44. When a direction is assigned to rotational speed, it is known as rotational velocity or angular velocity. 45. This star is spinning rapidly with a projected rotational velocity of 236 km s " 1. 46. This charge separation will be proportional to the relative rotational velocity between the disk and the magnet. 47. :Rotational velocity is differnt from linear velocity. 48. This star is rotating rapidly, with a rotational velocity of 199 km / s along the equator. 49. Blade speed was regulated by curved air brakes near the hub that deployed at excessive rotational velocities . 50. The rotational velocity of Beta Pictoris has been measured to be at least 130 km / s.