I have a physics problem that I think is not so hard but I just can't get the answer. There are two uniform circular disks that are rotating and attached by a string. there is no slip between the string and the disks. On the small disk is a hub that is attached like the first two to an even smaller disk by string. The radii are given for the three disks and the hub, and the smallest disk and largest disk have equal densities and thickness. I am asked to find the ratio between the magnitude of the angular momentum of the biggest disk to the angular momentum of the smallest disk. All the disks are spinning in the same direction. I added a picture of this but i'm not sure how exactly so it might not show. I appresciate any help I can get with this!