<s>[INST] Dry air is passed over a wet bulb in a psychrometer (wet and dry bulb thermometer). By assuming that the surface of the wet bulb on the psychrometer is assumed saturated with water, what is the relative humidity as a function of \(T_{s,db}\) (in \({}^{\circ}\)C) and \(T_{s,wg}\) (in \({}^{\circ}\)C)?[/INST]