The reflection coefficient hits 100% exactly at the critical angle. More rigorously, consider that an analysis of the boundary conditions at the interface requires that the two polarizations of light have reflectances:
Distance from Ruskin, FL to Palmetto, FL 18 Miles or 29 Km. How many hours? 24 mins
This location is 19.27 miles away from Williamston, SC and Greenwood, SC and it would take approximately 29 minutes to reach the halfway point from both locations. Closest City or Town to Halfway Point. The closest town to the halfway point is Donalds, SC, situated 21.28 miles from Williamston, SC and 17.26 miles from Greenwood, SC. It would take 33 minutes to go from Williamston to Donalds and 25 minutes to go from Greenwood to Donalds.