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
There are 16.20 miles from Ruskin to Palmetto in southwest direction and 18 miles (28.97 kilometers) by car, following the US-41 route. Ruskin and Palmetto are 25 minutes far apart, if you drive non-stop. This is the fastest route from Ruskin, FL to Palmetto, FL. Ruskin, FL and Palmetto, FL are in the same time zone (Eastern Daylight Time).