1. The problem statement, all variables and given/known data assume that the rotation period of saturn at the equator, very deep in the atmosphere is 10 hrs. higher in the atmosphere, the equatorial winds blow west to east at 250 m/s. What would be the rotation period of this higher level in the atmosphere? also know - maximum wind speed at equator = 450 m/s (from another source) 2. Relevant equations 3. The attempt at a solution I converted the rotation period of 10 hrs into rotation rate using 2pi(saturn's radius)/rotation period to get a value of 10 km/s. Now I am stuck - how do I find the relationship between rotation period/rate and wind speed? And does this relationship stay constant as you go up in the atmosphere? I guess ultimately I want to know is - how do I find the rotation rate/period for the upper level in the atmosphere? Thanks!