Physical geography laboratory manual name section exercise 20 problems-part ii (s. i. units) using the psychrometer tables (figures 20-2 and 20-3) and the table of saturation mixing ratios (figure 20-1), answer the following questions about determining relative humidity with a sling psychrometer. 1. if the dry-bulb temperature is 32°c, and the wet-bulb temperature is 26°c (a) (b) (c) what is the relative humidity? what is the dew point? what is the mixing ratio? (estimate from figure 20-1)