1)Find the radius of the circle if an arch of length 6 meters on the circle subtends a central angle of pi/6 radians
2) If a weight hanging on a string of length 3 feet swings through 5 degrees on either side of the vertical, how long is the arc through which the weight moves from one high point to the next high point.
3) Convert 125 rpm to radians/second
4) 73 degrees/second to radians per minute